- published: 25 Nov 2015
- views: 7937
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Eddy (fluid dynamics)
In fluid dynamics, an eddy is the swirling of a fluid and the reverse current created when the fluid flows past an obstacle. The moving fluid creates a space devoid of downstream-flowing fluid on the downstream side of the object. Fluid behind the obstacle flows into the void creating a swirl of fluid on each edge of the obstacle, followed by a short reverse flow of fluid behind the obstacle flowing upstream, toward the back of the obstacle. This phenomenon is most visible behind large emergent rocks in swift-flowing rivers.
Another possible type of turbulence is the vortex. This notion is now applied to gases, which have the same properties as liquids. Here, no void is created, but only an area of lower pressure, but again, a backflow causes the gas to rotate.
Mesoscale ocean eddies
Eddies are common in the ocean, and range in diameter from centimeters to hundreds of kilometers. The smallest scale eddies may last for a matter of seconds, while the larger features may persist for months to years.
This page contains text from Wikipedia, the Free Encyclopedia - https://wn.com/Eddy_(fluid_dynamics)
Fluid dynamics
In physics, fluid dynamics is a subdiscipline of fluid mechanics that deals with fluid flow—the natural science of fluids (liquids and gases) in motion. It has several subdisciplines itself, including aerodynamics (the study of air and other gases in motion) and hydrodynamics (the study of liquids in motion). Fluid dynamics has a wide range of applications, including calculating forces and moments on aircraft, determining the mass flow rate of petroleum through pipelines, predicting weather patterns, understanding nebulae in interstellar space and modelling fission weapon detonation. Some of its principles are even used in traffic engineering, where traffic is treated as a continuous fluid, and crowd dynamics.
Fluid dynamics offers a systematic structure—which underlies these practical disciplines—that embraces empirical and semi-empirical laws derived from flow measurement and used to solve practical problems. The solution to a fluid dynamics problem typically involves calculating various properties of the fluid, such as flow velocity, pressure, density, and temperature, as functions of space and time.
This page contains text from Wikipedia, the Free Encyclopedia - https://wn.com/Fluid_dynamics
Eddie
Eddie or Eddy may refer to:
Arts and entertainment
- Eddie (soundtrack), the soundtrack to the film
Other
This page contains text from Wikipedia, the Free Encyclopedia - https://wn.com/Eddie
Eddy (surname)
The surname Eddy is used by descendants of a number of English, Irish and Scottish families.
Etymology
Frank R. Holmes, in his Directory of the Ancestral Heads of New England Families, 1600-1700, proposes two possible origins; the Gaelic eddee, "instructor", or from the Saxon ed and ea, "backwards" and "water", a whirlpool or eddy, making the surname Eddy a place-name. Another possible origin is the Saxon root ead, "success" or "prosperity". Ead occurs in numerous commonly used names, as Edgar, Edmund, Edward, Edwin, and the outdated Edwy. John Eddy of Taunton spells the name Eddway in the earliest record so far found. Eddy could also be a diminutive of any one of these names. Robert Ferguson, in his work on English Surnames, believes that Eddy is a place-name: “Eday, Eady, Eddy are from ead, prosperity. Hence the name of the rock Eddiston, on which the celebrated light house is built. From this word are compounded a great number of Anglo-Saxon names of which we have Edward, Edmund, Edgar,Edw Edwin.”
This page contains text from Wikipedia, the Free Encyclopedia - https://wn.com/Eddy_(surname)
List of Ed, Edd n Eddy characters
The Ed, Edd n Eddy animated television series features an extensive cast of characters created by Danny Antonucci. The series takes place in the fictional town of Peach Creek. The number of characters in Ed, Edd n Eddy is fixed at twelve (thirteen if Plank, a board of wood who acts as one character's imaginary friend, is included).
The show revolves around three main characters (Ed, Edd, and Eddy), usually referred to as "the Eds". There is a secondary group of characters (Kevin, Rolf, Nazz, Jimmy, Sarah and Jonny), and three teenage girls known as "the Kanker Sisters". Most of the children live in the cul-de-sac, while the Kanker Sisters live in the nearby "Park 'n' Flush" trailer park. Eddy's brother is a character mentioned throughout the series, mostly by Eddy, but is never seen until the 2009 premiere of the series' finale movie Ed, Edd n Eddy's Big Picture Show; He is the only fully seen adult in the series.
The series' characters have received awards and nominations at the 2002 Fancy Anvil Awards, a fictional award show broadcast on Cartoon Network. Antonucci stated the personalities of the Eds are based on personal traits of himself, and the activities of his two sons, and that the other characters are based on children he grew up with.
This page contains text from Wikipedia, the Free Encyclopedia - https://wn.com/List_of_Ed,_Edd_n_Eddy_characters
Fluid
In physics, a fluid is a substance that continually deforms (flows) under an applied shear stress. Fluids are a subset of the phases of matter and include liquids, gases, plasmas and, to some extent, plastic solids. Fluids can be defined as substances that have zero shear modulus or in simpler terms a fluid is a substance which cannot resist any shear force applied to it.
Although the term "fluid" includes both the liquid and gas phases, in common usage, "fluid" is often used as a synonym for "liquid", with no implication that gas could also be present. For example, "brake fluid" is hydraulic oil and will not perform its required incompressible function if there is gas in it. This colloquial usage of the term is also common in medicine and in nutrition ("take plenty of fluids").
Liquids form a free surface (that is, a surface not created by the container) while gases do not. The distinction between solids and fluid is not entirely obvious. The distinction is made by evaluating the viscosity of the substance. Silly Putty can be considered to behave like a solid or a fluid, depending on the time period over which it is observed. It is best described as a viscoelastic fluid. There are many examples of substances proving difficult to classify. A particularly interesting one is pitch, as demonstrated in the pitch drop experiment currently running at the University of Queensland.
This page contains text from Wikipedia, the Free Encyclopedia - https://wn.com/Fluid
Fluid (disambiguation)
A fluid is defined as a substance that continually deforms (flows) under an applied shear stress.
Fluid may also refer to:
See also
This page contains text from Wikipedia, the Free Encyclopedia - https://wn.com/Fluid_(disambiguation)
Podcasts:
-
Eddy (fluid dynamics)
In fluid dynamics, an eddy is the swirling of a fluid and the reverse current created when the fluid flows past an obstacle. The moving fluid creates a space devoid of downstream-flowing fluid on the downstream side of the object. Fluid behind the obstacle flows into the void creating a swirl of fluid on each edge of the obstacle, followed by a short reverse flow of fluid behind the obstacle flowing upstream, toward the back of the obstacle. This phenomenon is most visible behind large emergent rocks in swift-flowing rivers. Another possible type of turbulence is the vortex. This notion is now applied to gases, which have the same properties as liquids. Here, no void is created, but only an area of lower pressure, but again, a backflow causes the gas to rotate. This video is targeted to ...
published: 25 Nov 2015 -
TRR181 "Eddies - vortices of the seas" easily explained
Eddies are in general moving fluids and are common in the ocean and therefore also very fascinating study objects for oceanographers and meterologists. How can they help us predicting the climate? We explain what eddies - the vortices of the seas - are and why they are important for the earth´s energy cycle. Additionally, you get an insight into the work of our project TRR 181 "Energy transfers in Atmosphere and Ocean" funded by the German Research Foundation (DFG). Please visit our website: www.trr-energytransfers.de. The movie was produced in cooperation with Explainity (www.explainity.com). This movie is a contribution to the Collaborative Research Centre TRR 181 "Energy Transfer in Atmosphere and Ocean" funded by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation...
published: 14 Sep 2018 -
Lecture 27 : Eddies
Concepts Covered: Rate of extraction of kinetic energy from the mean flow,Kolmogorv length scale.
published: 24 Feb 2018 -
Understanding Laminar and Turbulent Flow
Be one of the first 200 people to sign up to Brilliant using this link and get 20% off your annual subscription! https://brilliant.org/efficientengineer/ There are two main types of fluid flow - laminar flow, in which the fluid flows smoothly in layers, and turbulent flow, which is characterised by chaotic motion and large amounts of mixing. In this video we explore the differences between these two flow regimes. We'll cover how Reynolds number can be used to predict which flow regime will occur for a specific set of flow conditions. And we will look at laminar and turbulent flows in pipes, and how the flow regime affects the pressure drop in a pipe. We'll also investigate why it is so difficult to simulate turbulent flow, and we'll look at some of the different Computational Fluid Dynami...
published: 08 Sep 2020 -
Introduction to Eddy's Viscosity - Real Fluid Flow - Fluid Mechanics
Subject - Fluid Mechanics Video Name - Introduction to Eddy's Viscosity Chapter - Real Fluid Flow Faculty - Prof. Ninad Mahadeshwar Watch the video lecture on the Topic Introduction to Eddy's Viscosity of Fluid Mechanics by Professor Ninad Mahadeshwar. Watch the Complete lecture on Engineering Academics with Ekeeda. Welcome to Ekeeda Academic Subscription, your one-stop solution for Engineering Academic preparation. We will cover the entire syllabus, strategy, updates, and notifications which will help you to crack the Engineering Academic exams. 👉 Download Ekeeda Application & 1000 StudyCoins. Redeem StudyCoins to Subscribe a Course or Free Trial of Package. ✤ Download the Ekeeda - Learning App for Engineering Courses App here: ➤ Android: https://play.google.com/store/apps/details...
published: 25 Jul 2018 -
Eddy (fluid dynamics) | Wikipedia audio article
This is an audio version of the Wikipedia Article: https://en.wikipedia.org/wiki/Eddy_(fluid_dynamics) 00:00:31 1 Swirl and eddies in engineering 00:00:57 2 Reynolds number and turbulence 00:03:01 3 Research and development 00:03:11 3.1 Hemodynamics 00:03:48 3.2 Industrial processes 00:04:18 3.3 Fluid currents and pollution control 00:05:01 3.4 Computational fluid dynamics 00:07:40 4 Mesoscale ocean eddies 00:09:39 5 See also Listening is a more natural way of learning, when compared to reading. Written language only began at around 3200 BC, but spoken language has existed long ago. Learning by listening is a great way to: - increases imagination and understanding - improves your listening skills - improves your own spoken accent - learn while on the move - reduce eye s...
published: 02 Oct 2019 -
[CFD] Large Eddy Simulation (LES): An Introduction
An introduction to Large Eddy Simulation (LES) and how to make the transition from RANS to LES. The following topics are covered: 1) 3:13 How are eddies resolved in CFD? 2) 8:23 What is the turbulent energy cascade and why is it important for LES? 3) 15:25 How fine does the mesh need to be for LES? #les #cfd #fluidmechanics101 ==================================================== Some useful references: 1) ANSYS Best Practice Guide for LES F. R. Menter 'Best Practice: Scale-Resolving Simulations in ANSYS CFD', version 2.00. November 2015. Available from ANSYS Customer Portal. 2) ANSYS LES Quick Setup Guide A. Gerasimov, 'Quick Guide to Setting Up LES-type simulations', version 1.4, May 2016. Available from ANSYS Customer Portal. 3) P. R. Spalart, 'Young-Person's Guide to Detec...
published: 23 Sep 2020 -
Fluids in Motion: Crash Course Physics #15
Today, we continue our exploration of fluids and fluid dynamics. How do fluids act when they're in motion? How does pressure in different places change water flow? And what is one of the motion annoying things about filming outside on a nice day? I'll give you a hint on that last one... it's lawnmowers. In this episode of Crash Course Physics, Shini talks to us about how fluids in motion are really, really, REALLY powerful things. -- Produced in collaboration with PBS Digital Studios: http://youtube.com/pbsdigitalstudios -- Want to find Crash Course elsewhere on the internet? Facebook - http://www.facebook.com/YouTubeCrashC... Twitter - http://www.twitter.com/TheCrashCourse Tumblr - http://thecrashcourse.tumblr.com Support CrashCourse on Patreon: http://www.patreon.com/crashcourse ...
published: 14 Jul 2016
developed with YouTube
3:07
Eddy (fluid dynamics)
- Order: Reorder
- Duration: 3:07
- Uploaded Date: 25 Nov 2015
- views: 7937
In fluid dynamics, an eddy is the swirling of a fluid and the reverse current created when the fluid flows past an obstacle. The moving fluid creates a space de...
In fluid dynamics, an eddy is the swirling of a fluid and the reverse current created when the fluid flows past an obstacle. The moving fluid creates a space devoid of downstream-flowing fluid on the downstream side of the object. Fluid behind the obstacle flows into the void creating a swirl of fluid on each edge of the obstacle, followed by a short reverse flow of fluid behind the obstacle flowing upstream, toward the back of the obstacle. This phenomenon is most visible behind large emergent rocks in swift-flowing rivers.
Another possible type of turbulence is the vortex. This notion is now applied to gases, which have the same properties as liquids. Here, no void is created, but only an area of lower pressure, but again, a backflow causes the gas to rotate.
This video is targeted to blind users.
Attribution:
Article text available under CC-BY-SA
Creative Commons image source in video
https://wn.com/Eddy_(Fluid_Dynamics)
In fluid dynamics, an eddy is the swirling of a fluid and the reverse current created when the fluid flows past an obstacle. The moving fluid creates a space devoid of downstream-flowing fluid on the downstream side of the object. Fluid behind the obstacle flows into the void creating a swirl of fluid on each edge of the obstacle, followed by a short reverse flow of fluid behind the obstacle flowing upstream, toward the back of the obstacle. This phenomenon is most visible behind large emergent rocks in swift-flowing rivers.
Another possible type of turbulence is the vortex. This notion is now applied to gases, which have the same properties as liquids. Here, no void is created, but only an area of lower pressure, but again, a backflow causes the gas to rotate.
This video is targeted to blind users.
Attribution:
Article text available under CC-BY-SA
Creative Commons image source in video
3:51
TRR181 "Eddies - vortices of the seas" easily explained
- Order: Reorder
- Duration: 3:51
- Uploaded Date: 14 Sep 2018
- views: 15207
Eddies are in general moving fluids and are common in the ocean and therefore also very fascinating study objects for oceanographers and meterologists. How can ...
Eddies are in general moving fluids and are common in the ocean and therefore also very fascinating study objects for oceanographers and meterologists. How can they help us predicting the climate? We explain what eddies - the vortices of the seas - are and why they are important for the earth´s energy cycle.
Additionally, you get an insight into the work of our project TRR 181 "Energy transfers in Atmosphere and Ocean" funded by the German Research Foundation (DFG). Please visit our website: www.trr-energytransfers.de.
The movie was produced in cooperation with Explainity (www.explainity.com).
This movie is a contribution to the Collaborative Research Centre TRR 181 "Energy Transfer in Atmosphere and Ocean" funded by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) - Projektnummer 274762653.
https://wn.com/Trr181_Eddies_Vortices_Of_The_Seas_Easily_Explained
Eddies are in general moving fluids and are common in the ocean and therefore also very fascinating study objects for oceanographers and meterologists. How can they help us predicting the climate? We explain what eddies - the vortices of the seas - are and why they are important for the earth´s energy cycle.
Additionally, you get an insight into the work of our project TRR 181 "Energy transfers in Atmosphere and Ocean" funded by the German Research Foundation (DFG). Please visit our website: www.trr-energytransfers.de.
The movie was produced in cooperation with Explainity (www.explainity.com).
This movie is a contribution to the Collaborative Research Centre TRR 181 "Energy Transfer in Atmosphere and Ocean" funded by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) - Projektnummer 274762653.
- published: 14 Sep 2018
- views: 15207
23:29
Lecture 27 : Eddies
- Order: Reorder
- Duration: 23:29
- Uploaded Date: 24 Feb 2018
- views: 4478
Concepts Covered:
Rate of extraction of kinetic energy from the mean flow,Kolmogorv length scale.
Concepts Covered:
Rate of extraction of kinetic energy from the mean flow,Kolmogorv length scale.
https://wn.com/Lecture_27_Eddies
Concepts Covered:
Rate of extraction of kinetic energy from the mean flow,Kolmogorv length scale.
- published: 24 Feb 2018
- views: 4478
14:59
Understanding Laminar and Turbulent Flow
- Order: Reorder
- Duration: 14:59
- Uploaded Date: 08 Sep 2020
- views: 1018513
Be one of the first 200 people to sign up to Brilliant using this link and get 20% off your annual subscription!
https://brilliant.org/efficientengineer/
There...
Be one of the first 200 people to sign up to Brilliant using this link and get 20% off your annual subscription!
https://brilliant.org/efficientengineer/
There are two main types of fluid flow - laminar flow, in which the fluid flows smoothly in layers, and turbulent flow, which is characterised by chaotic motion and large amounts of mixing. In this video we explore the differences between these two flow regimes. We'll cover how Reynolds number can be used to predict which flow regime will occur for a specific set of flow conditions. And we will look at laminar and turbulent flows in pipes, and how the flow regime affects the pressure drop in a pipe. We'll also investigate why it is so difficult to simulate turbulent flow, and we'll look at some of the different Computational Fluid Dynamics methods which can be used to simulate it.
---
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---
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Follow me on Twitter: https://twitter.com/efficiengineer
https://wn.com/Understanding_Laminar_And_Turbulent_Flow
Be one of the first 200 people to sign up to Brilliant using this link and get 20% off your annual subscription!
https://brilliant.org/efficientengineer/
There are two main types of fluid flow - laminar flow, in which the fluid flows smoothly in layers, and turbulent flow, which is characterised by chaotic motion and large amounts of mixing. In this video we explore the differences between these two flow regimes. We'll cover how Reynolds number can be used to predict which flow regime will occur for a specific set of flow conditions. And we will look at laminar and turbulent flows in pipes, and how the flow regime affects the pressure drop in a pipe. We'll also investigate why it is so difficult to simulate turbulent flow, and we'll look at some of the different Computational Fluid Dynamics methods which can be used to simulate it.
---
If you would like to support the channel, please consider becoming a Patron - https://www.patreon.com/efficientengineer.
This will allow me to create more high quality videos covering a range of engineering topics.
---
The Efficient Engineer is a channel aimed at mechanical and civil engineers. The mission is to simplify engineering concepts, one video at a time!
Follow me on Twitter: https://twitter.com/efficiengineer
- published: 08 Sep 2020
- views: 1018513
11:19
Introduction to Eddy's Viscosity - Real Fluid Flow - Fluid Mechanics
- Order: Reorder
- Duration: 11:19
- Uploaded Date: 25 Jul 2018
- views: 11584
Subject - Fluid Mechanics
Video Name - Introduction to Eddy's Viscosity
Chapter - Real Fluid Flow
Faculty - Prof. Ninad Mahadeshwar
Watch the video lecture...
Subject - Fluid Mechanics
Video Name - Introduction to Eddy's Viscosity
Chapter - Real Fluid Flow
Faculty - Prof. Ninad Mahadeshwar
Watch the video lecture on the Topic Introduction to Eddy's Viscosity of Fluid Mechanics by Professor Ninad Mahadeshwar. Watch the Complete lecture on Engineering Academics with Ekeeda.
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https://wn.com/Introduction_To_Eddy's_Viscosity_Real_Fluid_Flow_Fluid_Mechanics
Subject - Fluid Mechanics
Video Name - Introduction to Eddy's Viscosity
Chapter - Real Fluid Flow
Faculty - Prof. Ninad Mahadeshwar
Watch the video lecture on the Topic Introduction to Eddy's Viscosity of Fluid Mechanics by Professor Ninad Mahadeshwar. Watch the Complete lecture on Engineering Academics with Ekeeda.
Welcome to Ekeeda Academic Subscription, your one-stop solution for Engineering Academic preparation.
We will cover the entire syllabus, strategy, updates, and notifications which will help you to crack the Engineering Academic exams.
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- published: 25 Jul 2018
- views: 11584
10:19
Eddy (fluid dynamics) | Wikipedia audio article
- Order: Reorder
- Duration: 10:19
- Uploaded Date: 02 Oct 2019
- views: 9
This is an audio version of the Wikipedia Article:
https://en.wikipedia.org/wiki/Eddy_(fluid_dynamics)
00:00:31 1 Swirl and eddies in engineering
00:00:57...
This is an audio version of the Wikipedia Article:
https://en.wikipedia.org/wiki/Eddy_(fluid_dynamics)
00:00:31 1 Swirl and eddies in engineering
00:00:57 2 Reynolds number and turbulence
00:03:01 3 Research and development
00:03:11 3.1 Hemodynamics
00:03:48 3.2 Industrial processes
00:04:18 3.3 Fluid currents and pollution control
00:05:01 3.4 Computational fluid dynamics
00:07:40 4 Mesoscale ocean eddies
00:09:39 5 See also
Listening is a more natural way of learning, when compared to reading. Written language only began at around 3200 BC, but spoken language has existed long ago.
Learning by listening is a great way to:
- increases imagination and understanding
- improves your listening skills
- improves your own spoken accent
- learn while on the move
- reduce eye strain
Now learn the vast amount of general knowledge available on Wikipedia through audio (audio article). You could even learn subconsciously by playing the audio while you are sleeping! If you are planning to listen a lot, you could try using a bone conduction headphone, or a standard speaker instead of an earphone.
Listen on Google Assistant through Extra Audio:
https://assistant.google.com/services/invoke/uid/0000001a130b3f91
Other Wikipedia audio articles at:
https://www.youtube.com/results?search_query=wikipedia+tts
Upload your own Wikipedia articles through:
https://github.com/nodef/wikipedia-tts
Speaking Rate: 0.9455924557974322
Voice name: en-AU-Wavenet-B
"I cannot teach anybody anything, I can only make them think."
- Socrates
SUMMARY
=======
In fluid dynamics, an eddy is the swirling of a fluid and the reverse current created when the fluid is in a turbulent flow regime. The moving fluid creates a space devoid of downstream-flowing fluid on the downstream side of the object. Fluid behind the obstacle flows into the void creating a swirl of fluid on each edge of the obstacle, followed by a short reverse flow of fluid behind the obstacle flowing upstream, toward the back of the obstacle. This phenomenon is naturally observed behind large emergent rocks in swift-flowing rivers.
https://wn.com/Eddy_(Fluid_Dynamics)_|_Wikipedia_Audio_Article
This is an audio version of the Wikipedia Article:
https://en.wikipedia.org/wiki/Eddy_(fluid_dynamics)
00:00:31 1 Swirl and eddies in engineering
00:00:57 2 Reynolds number and turbulence
00:03:01 3 Research and development
00:03:11 3.1 Hemodynamics
00:03:48 3.2 Industrial processes
00:04:18 3.3 Fluid currents and pollution control
00:05:01 3.4 Computational fluid dynamics
00:07:40 4 Mesoscale ocean eddies
00:09:39 5 See also
Listening is a more natural way of learning, when compared to reading. Written language only began at around 3200 BC, but spoken language has existed long ago.
Learning by listening is a great way to:
- increases imagination and understanding
- improves your listening skills
- improves your own spoken accent
- learn while on the move
- reduce eye strain
Now learn the vast amount of general knowledge available on Wikipedia through audio (audio article). You could even learn subconsciously by playing the audio while you are sleeping! If you are planning to listen a lot, you could try using a bone conduction headphone, or a standard speaker instead of an earphone.
Listen on Google Assistant through Extra Audio:
https://assistant.google.com/services/invoke/uid/0000001a130b3f91
Other Wikipedia audio articles at:
https://www.youtube.com/results?search_query=wikipedia+tts
Upload your own Wikipedia articles through:
https://github.com/nodef/wikipedia-tts
Speaking Rate: 0.9455924557974322
Voice name: en-AU-Wavenet-B
"I cannot teach anybody anything, I can only make them think."
- Socrates
SUMMARY
=======
In fluid dynamics, an eddy is the swirling of a fluid and the reverse current created when the fluid is in a turbulent flow regime. The moving fluid creates a space devoid of downstream-flowing fluid on the downstream side of the object. Fluid behind the obstacle flows into the void creating a swirl of fluid on each edge of the obstacle, followed by a short reverse flow of fluid behind the obstacle flowing upstream, toward the back of the obstacle. This phenomenon is naturally observed behind large emergent rocks in swift-flowing rivers.
- published: 02 Oct 2019
- views: 9
27:23
[CFD] Large Eddy Simulation (LES): An Introduction
- Order: Reorder
- Duration: 27:23
- Uploaded Date: 23 Sep 2020
- views: 40953
An introduction to Large Eddy Simulation (LES) and how to make the transition from RANS to LES. The following topics are covered:
1) 3:13 How are eddies resolv...
An introduction to Large Eddy Simulation (LES) and how to make the transition from RANS to LES. The following topics are covered:
1) 3:13 How are eddies resolved in CFD?
2) 8:23 What is the turbulent energy cascade and why is it important for LES?
3) 15:25 How fine does the mesh need to be for LES?
#les #cfd #fluidmechanics101
====================================================
Some useful references:
1) ANSYS Best Practice Guide for LES
F. R. Menter 'Best Practice: Scale-Resolving Simulations in ANSYS CFD', version 2.00. November 2015. Available from ANSYS Customer Portal.
2) ANSYS LES Quick Setup Guide
A. Gerasimov, 'Quick Guide to Setting Up LES-type simulations', version 1.4, May 2016.
Available from ANSYS Customer Portal.
3) P. R. Spalart, 'Young-Person's Guide to Deteched-Eddy Simulation Grids', NASA/CR-2001-211032, July 2001.
http://qnet-ercoftac.cfms.org.uk/w/images/d/da/UFR2-12_NASA_ypg.pdf
============================================
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============================================
Download the lecture slides from my website:
https://www.fluidmechanics101.com/pages/lectures.html
Buy me a coffee to say thanks:
https://www.buymeacoffee.com/NKEZrhvg0
Support the channel on Patreon (and get useful extras for your CFD studies):
https://www.patreon.com/fluidmechanics101
============================================
Donations:
============================================
1) PayPal
https://www.paypal.me/fluidmechanics101
==================================
Disclaimer
==================================
The methods, algorithms, equations, formulae, diagrams and explanations in this talk are for educational and demonstrative purposes only. They should never be used to analyse, design, accredit or validate real scientific / engineering / mathematical structures and flow systems. For such applications, appropriate trained, qualified and accredited (SQEP) engineers / scientists should be consulted along with the appropriate documentation, procedures and engineering standards. Furthermore, the information contained within this talk has not been verified, peer reviewed or checked in any way and is likely to contain several errors. It is therefore not appropriate to use this talk itself (or any of the algorithms, equations, formulae, diagrams and explanations contained within this talk) as an academic or technical reference. The reader should consult the original references and follow the verification and validation processes adopted by your company / institution when carrying out engineering calculations and analyses. Fluid Mechanics 101 and Dr. Aidan Wimshurst are not accountable or liable in any form for the use or misuse of the information contained in this talk beyond the specific educational and demonstrative purposes for which it was intended.
https://wn.com/Cfd_Large_Eddy_Simulation_(Les)_An_Introduction
An introduction to Large Eddy Simulation (LES) and how to make the transition from RANS to LES. The following topics are covered:
1) 3:13 How are eddies resolved in CFD?
2) 8:23 What is the turbulent energy cascade and why is it important for LES?
3) 15:25 How fine does the mesh need to be for LES?
#les #cfd #fluidmechanics101
====================================================
Some useful references:
1) ANSYS Best Practice Guide for LES
F. R. Menter 'Best Practice: Scale-Resolving Simulations in ANSYS CFD', version 2.00. November 2015. Available from ANSYS Customer Portal.
2) ANSYS LES Quick Setup Guide
A. Gerasimov, 'Quick Guide to Setting Up LES-type simulations', version 1.4, May 2016.
Available from ANSYS Customer Portal.
3) P. R. Spalart, 'Young-Person's Guide to Deteched-Eddy Simulation Grids', NASA/CR-2001-211032, July 2001.
http://qnet-ercoftac.cfms.org.uk/w/images/d/da/UFR2-12_NASA_ypg.pdf
============================================
Want to learn more?
============================================
Learn how I draw my figures and diagrams in Inkscape
https://www.udemy.com/course/inkscape-for-scientists-and-engineers/?referralCode=6C8957C2548D1DE7B338
Grab a copy of my CFD Fundamentals Course (for beginners):
https://www.udemy.com/course/computational-fluid-dynamics-fundamentals-course/?referralCode=F9CF2DFFCA224E93834E
Browse all of my CFD material on my website:
https://www.fluidmechanics101.com/index.html
============================================
Did you like the video?
============================================
Download the lecture slides from my website:
https://www.fluidmechanics101.com/pages/lectures.html
Buy me a coffee to say thanks:
https://www.buymeacoffee.com/NKEZrhvg0
Support the channel on Patreon (and get useful extras for your CFD studies):
https://www.patreon.com/fluidmechanics101
============================================
Donations:
============================================
1) PayPal
https://www.paypal.me/fluidmechanics101
==================================
Disclaimer
==================================
The methods, algorithms, equations, formulae, diagrams and explanations in this talk are for educational and demonstrative purposes only. They should never be used to analyse, design, accredit or validate real scientific / engineering / mathematical structures and flow systems. For such applications, appropriate trained, qualified and accredited (SQEP) engineers / scientists should be consulted along with the appropriate documentation, procedures and engineering standards. Furthermore, the information contained within this talk has not been verified, peer reviewed or checked in any way and is likely to contain several errors. It is therefore not appropriate to use this talk itself (or any of the algorithms, equations, formulae, diagrams and explanations contained within this talk) as an academic or technical reference. The reader should consult the original references and follow the verification and validation processes adopted by your company / institution when carrying out engineering calculations and analyses. Fluid Mechanics 101 and Dr. Aidan Wimshurst are not accountable or liable in any form for the use or misuse of the information contained in this talk beyond the specific educational and demonstrative purposes for which it was intended.
- published: 23 Sep 2020
- views: 40953
9:47
Fluids in Motion: Crash Course Physics #15
- Order: Reorder
- Duration: 9:47
- Uploaded Date: 14 Jul 2016
- views: 1213468
Today, we continue our exploration of fluids and fluid dynamics. How do fluids act when they're in motion? How does pressure in different places change water fl...
Today, we continue our exploration of fluids and fluid dynamics. How do fluids act when they're in motion? How does pressure in different places change water flow? And what is one of the motion annoying things about filming outside on a nice day? I'll give you a hint on that last one... it's lawnmowers.
In this episode of Crash Course Physics, Shini talks to us about how fluids in motion are really, really, REALLY powerful things.
--
Produced in collaboration with PBS Digital Studios: http://youtube.com/pbsdigitalstudios
--
Want to find Crash Course elsewhere on the internet?
Facebook - http://www.facebook.com/YouTubeCrashC...
Twitter - http://www.twitter.com/TheCrashCourse
Tumblr - http://thecrashcourse.tumblr.com
Support CrashCourse on Patreon: http://www.patreon.com/crashcourse
CC Kids: http://www.youtube.com/crashcoursekids
https://wn.com/Fluids_In_Motion_Crash_Course_Physics_15
Today, we continue our exploration of fluids and fluid dynamics. How do fluids act when they're in motion? How does pressure in different places change water flow? And what is one of the motion annoying things about filming outside on a nice day? I'll give you a hint on that last one... it's lawnmowers.
In this episode of Crash Course Physics, Shini talks to us about how fluids in motion are really, really, REALLY powerful things.
--
Produced in collaboration with PBS Digital Studios: http://youtube.com/pbsdigitalstudios
--
Want to find Crash Course elsewhere on the internet?
Facebook - http://www.facebook.com/YouTubeCrashC...
Twitter - http://www.twitter.com/TheCrashCourse
Tumblr - http://thecrashcourse.tumblr.com
Support CrashCourse on Patreon: http://www.patreon.com/crashcourse
CC Kids: http://www.youtube.com/crashcoursekids
- published: 14 Jul 2016
- views: 1213468
3:07
Eddy (fluid dynamics)
In fluid dynamics, an eddy is the swirling of a fluid and the reverse current created when...
published: 25 Nov 2015
Eddy (fluid dynamics)
Eddy (fluid dynamics)
- Report rights infringement
- published: 25 Nov 2015
- views: 7937
In fluid dynamics, an eddy is the swirling of a fluid and the reverse current created when the fluid flows past an obstacle. The moving fluid creates a space devoid of downstream-flowing fluid on the downstream side of the object. Fluid behind the obstacle flows into the void creating a swirl of fluid on each edge of the obstacle, followed by a short reverse flow of fluid behind the obstacle flowing upstream, toward the back of the obstacle. This phenomenon is most visible behind large emergent rocks in swift-flowing rivers.
Another possible type of turbulence is the vortex. This notion is now applied to gases, which have the same properties as liquids. Here, no void is created, but only an area of lower pressure, but again, a backflow causes the gas to rotate.
This video is targeted to blind users.
Attribution:
Article text available under CC-BY-SA
Creative Commons image source in video
3:51
TRR181 "Eddies - vortices of the seas" easily explained
Eddies are in general moving fluids and are common in the ocean and therefore also very fa...
published: 14 Sep 2018
TRR181 "Eddies - vortices of the seas" easily explained
TRR181 "Eddies - vortices of the seas" easily explained
- Report rights infringement
- published: 14 Sep 2018
- views: 15207
Eddies are in general moving fluids and are common in the ocean and therefore also very fascinating study objects for oceanographers and meterologists. How can they help us predicting the climate? We explain what eddies - the vortices of the seas - are and why they are important for the earth´s energy cycle.
Additionally, you get an insight into the work of our project TRR 181 "Energy transfers in Atmosphere and Ocean" funded by the German Research Foundation (DFG). Please visit our website: www.trr-energytransfers.de.
The movie was produced in cooperation with Explainity (www.explainity.com).
This movie is a contribution to the Collaborative Research Centre TRR 181 "Energy Transfer in Atmosphere and Ocean" funded by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) - Projektnummer 274762653.
23:29
Lecture 27 : Eddies
Concepts Covered:
Rate of extraction of kinetic energy from the mean flow,Kolmogorv lengt...
published: 24 Feb 2018
Lecture 27 : Eddies
Lecture 27 : Eddies
- Report rights infringement
- published: 24 Feb 2018
- views: 4478
Concepts Covered:
Rate of extraction of kinetic energy from the mean flow,Kolmogorv length scale.
14:59
Understanding Laminar and Turbulent Flow
Be one of the first 200 people to sign up to Brilliant using this link and get 20% off you...
published: 08 Sep 2020
Understanding Laminar and Turbulent Flow
Understanding Laminar and Turbulent Flow
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- published: 08 Sep 2020
- views: 1018513
Be one of the first 200 people to sign up to Brilliant using this link and get 20% off your annual subscription!
https://brilliant.org/efficientengineer/
There are two main types of fluid flow - laminar flow, in which the fluid flows smoothly in layers, and turbulent flow, which is characterised by chaotic motion and large amounts of mixing. In this video we explore the differences between these two flow regimes. We'll cover how Reynolds number can be used to predict which flow regime will occur for a specific set of flow conditions. And we will look at laminar and turbulent flows in pipes, and how the flow regime affects the pressure drop in a pipe. We'll also investigate why it is so difficult to simulate turbulent flow, and we'll look at some of the different Computational Fluid Dynamics methods which can be used to simulate it.
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If you would like to support the channel, please consider becoming a Patron - https://www.patreon.com/efficientengineer.
This will allow me to create more high quality videos covering a range of engineering topics.
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The Efficient Engineer is a channel aimed at mechanical and civil engineers. The mission is to simplify engineering concepts, one video at a time!
Follow me on Twitter: https://twitter.com/efficiengineer
11:19
Introduction to Eddy's Viscosity - Real Fluid Flow - Fluid Mechanics
Subject - Fluid Mechanics
Video Name - Introduction to Eddy's Viscosity
Chapter - Real ...
published: 25 Jul 2018
Introduction to Eddy's Viscosity - Real Fluid Flow - Fluid Mechanics
Introduction to Eddy's Viscosity - Real Fluid Flow - Fluid Mechanics
- Report rights infringement
- published: 25 Jul 2018
- views: 11584
Subject - Fluid Mechanics
Video Name - Introduction to Eddy's Viscosity
Chapter - Real Fluid Flow
Faculty - Prof. Ninad Mahadeshwar
Watch the video lecture on the Topic Introduction to Eddy's Viscosity of Fluid Mechanics by Professor Ninad Mahadeshwar. Watch the Complete lecture on Engineering Academics with Ekeeda.
Welcome to Ekeeda Academic Subscription, your one-stop solution for Engineering Academic preparation.
We will cover the entire syllabus, strategy, updates, and notifications which will help you to crack the Engineering Academic exams.
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10:19
Eddy (fluid dynamics) | Wikipedia audio article
This is an audio version of the Wikipedia Article:
https://en.wikipedia.org/wiki/Eddy_(fl...
published: 02 Oct 2019
Eddy (fluid dynamics) | Wikipedia audio article
Eddy (fluid dynamics) | Wikipedia audio article
- Report rights infringement
- published: 02 Oct 2019
- views: 9
This is an audio version of the Wikipedia Article:
https://en.wikipedia.org/wiki/Eddy_(fluid_dynamics)
00:00:31 1 Swirl and eddies in engineering
00:00:57 2 Reynolds number and turbulence
00:03:01 3 Research and development
00:03:11 3.1 Hemodynamics
00:03:48 3.2 Industrial processes
00:04:18 3.3 Fluid currents and pollution control
00:05:01 3.4 Computational fluid dynamics
00:07:40 4 Mesoscale ocean eddies
00:09:39 5 See also
Listening is a more natural way of learning, when compared to reading. Written language only began at around 3200 BC, but spoken language has existed long ago.
Learning by listening is a great way to:
- increases imagination and understanding
- improves your listening skills
- improves your own spoken accent
- learn while on the move
- reduce eye strain
Now learn the vast amount of general knowledge available on Wikipedia through audio (audio article). You could even learn subconsciously by playing the audio while you are sleeping! If you are planning to listen a lot, you could try using a bone conduction headphone, or a standard speaker instead of an earphone.
Listen on Google Assistant through Extra Audio:
https://assistant.google.com/services/invoke/uid/0000001a130b3f91
Other Wikipedia audio articles at:
https://www.youtube.com/results?search_query=wikipedia+tts
Upload your own Wikipedia articles through:
https://github.com/nodef/wikipedia-tts
Speaking Rate: 0.9455924557974322
Voice name: en-AU-Wavenet-B
"I cannot teach anybody anything, I can only make them think."
- Socrates
SUMMARY
=======
In fluid dynamics, an eddy is the swirling of a fluid and the reverse current created when the fluid is in a turbulent flow regime. The moving fluid creates a space devoid of downstream-flowing fluid on the downstream side of the object. Fluid behind the obstacle flows into the void creating a swirl of fluid on each edge of the obstacle, followed by a short reverse flow of fluid behind the obstacle flowing upstream, toward the back of the obstacle. This phenomenon is naturally observed behind large emergent rocks in swift-flowing rivers.
27:23
[CFD] Large Eddy Simulation (LES): An Introduction
An introduction to Large Eddy Simulation (LES) and how to make the transition from RANS to...
published: 23 Sep 2020
[CFD] Large Eddy Simulation (LES): An Introduction
[CFD] Large Eddy Simulation (LES): An Introduction
- Report rights infringement
- published: 23 Sep 2020
- views: 40953
An introduction to Large Eddy Simulation (LES) and how to make the transition from RANS to LES. The following topics are covered:
1) 3:13 How are eddies resolved in CFD?
2) 8:23 What is the turbulent energy cascade and why is it important for LES?
3) 15:25 How fine does the mesh need to be for LES?
#les #cfd #fluidmechanics101
====================================================
Some useful references:
1) ANSYS Best Practice Guide for LES
F. R. Menter 'Best Practice: Scale-Resolving Simulations in ANSYS CFD', version 2.00. November 2015. Available from ANSYS Customer Portal.
2) ANSYS LES Quick Setup Guide
A. Gerasimov, 'Quick Guide to Setting Up LES-type simulations', version 1.4, May 2016.
Available from ANSYS Customer Portal.
3) P. R. Spalart, 'Young-Person's Guide to Deteched-Eddy Simulation Grids', NASA/CR-2001-211032, July 2001.
http://qnet-ercoftac.cfms.org.uk/w/images/d/da/UFR2-12_NASA_ypg.pdf
============================================
Want to learn more?
============================================
Learn how I draw my figures and diagrams in Inkscape
https://www.udemy.com/course/inkscape-for-scientists-and-engineers/?referralCode=6C8957C2548D1DE7B338
Grab a copy of my CFD Fundamentals Course (for beginners):
https://www.udemy.com/course/computational-fluid-dynamics-fundamentals-course/?referralCode=F9CF2DFFCA224E93834E
Browse all of my CFD material on my website:
https://www.fluidmechanics101.com/index.html
============================================
Did you like the video?
============================================
Download the lecture slides from my website:
https://www.fluidmechanics101.com/pages/lectures.html
Buy me a coffee to say thanks:
https://www.buymeacoffee.com/NKEZrhvg0
Support the channel on Patreon (and get useful extras for your CFD studies):
https://www.patreon.com/fluidmechanics101
============================================
Donations:
============================================
1) PayPal
https://www.paypal.me/fluidmechanics101
==================================
Disclaimer
==================================
The methods, algorithms, equations, formulae, diagrams and explanations in this talk are for educational and demonstrative purposes only. They should never be used to analyse, design, accredit or validate real scientific / engineering / mathematical structures and flow systems. For such applications, appropriate trained, qualified and accredited (SQEP) engineers / scientists should be consulted along with the appropriate documentation, procedures and engineering standards. Furthermore, the information contained within this talk has not been verified, peer reviewed or checked in any way and is likely to contain several errors. It is therefore not appropriate to use this talk itself (or any of the algorithms, equations, formulae, diagrams and explanations contained within this talk) as an academic or technical reference. The reader should consult the original references and follow the verification and validation processes adopted by your company / institution when carrying out engineering calculations and analyses. Fluid Mechanics 101 and Dr. Aidan Wimshurst are not accountable or liable in any form for the use or misuse of the information contained in this talk beyond the specific educational and demonstrative purposes for which it was intended.
9:47
Fluids in Motion: Crash Course Physics #15
Today, we continue our exploration of fluids and fluid dynamics. How do fluids act when th...
published: 14 Jul 2016
Fluids in Motion: Crash Course Physics #15
Fluids in Motion: Crash Course Physics #15
- Report rights infringement
- published: 14 Jul 2016
- views: 1213468
Today, we continue our exploration of fluids and fluid dynamics. How do fluids act when they're in motion? How does pressure in different places change water flow? And what is one of the motion annoying things about filming outside on a nice day? I'll give you a hint on that last one... it's lawnmowers.
In this episode of Crash Course Physics, Shini talks to us about how fluids in motion are really, really, REALLY powerful things.
--
Produced in collaboration with PBS Digital Studios: http://youtube.com/pbsdigitalstudios
--
Want to find Crash Course elsewhere on the internet?
Facebook - http://www.facebook.com/YouTubeCrashC...
Twitter - http://www.twitter.com/TheCrashCourse
Tumblr - http://thecrashcourse.tumblr.com
Support CrashCourse on Patreon: http://www.patreon.com/crashcourse
CC Kids: http://www.youtube.com/crashcoursekids
Eddy (fluid dynamics)
In fluid dynamics, an eddy is the swirling of a fluid and the reverse current created when the fluid flows past an obstacle. The moving fluid creates a space devoid of downstream-flowing fluid on the downstream side of the object. Fluid behind the obstacle flows into the void creating a swirl of fluid on each edge of the obstacle, followed by a short reverse flow of fluid behind the obstacle flowing upstream, toward the back of the obstacle. This phenomenon is most visible behind large emergent rocks in swift-flowing rivers.
Another possible type of turbulence is the vortex. This notion is now applied to gases, which have the same properties as liquids. Here, no void is created, but only an area of lower pressure, but again, a backflow causes the gas to rotate.
Mesoscale ocean eddies
Eddies are common in the ocean, and range in diameter from centimeters to hundreds of kilometers. The smallest scale eddies may last for a matter of seconds, while the larger features may persist for months to years.
This page contains text from Wikipedia, the Free Encyclopedia - https://wn.com/Eddy_(fluid_dynamics)
Eddy (fluid dynamics)...
TRR181 "Eddies - vortices of the seas" easily expl...
Lecture 27 : Eddies...
Understanding Laminar and Turbulent Flow...
Introduction to Eddy's Viscosity - Real Fluid Flow...
Eddy (fluid dynamics) | Wikipedia audio article...
[CFD] Large Eddy Simulation (LES): An Introduction...
Fluids in Motion: Crash Course Physics #15...
Latest News for: eddy (fluid dynamics)
Edit
Tiny rainforest lizards leap into water and don’t come up when expected. Scientists now know why
The scientists determined that the sizes of the 14 whorls or eddies in “The Starry Night,” and their relative distance and intensity, follow a physical law that governs fluid dynamics known as Kolmogorov’s theory of turbulence.
Edit
York News-Times
21 Sep 2024
Tiny rainforest lizards leap into water and don\u2019t come up when expected. Scientists now know why
York News-Times
21 Sep 2024
The scientists determined that the sizes of the 14 whorls or eddies in “The Starry Night,” and their relative distance and intensity, follow a physical law that governs fluid dynamics known as Kolmogorov’s theory of turbulence.
Edit
Turbulent skies of Vincent Van Gogh’s ‘The Starry Night’ align with a scientific theory, study finds
They discovered that the sizes of the 14 whirls or eddies in “The Starry Night,” and their relative distance and intensity, follow a physical law that governs fluid dynamics known as Kolmogorov’s theory of turbulence.
- 1