PHARE

PHARE is a Hybrid Particle-In-Cell (PIC) code. It solves the evolution of the Vlasov equation of an arbitrary number of ion populations in a Lagrangian way. Electrons are modeled as a single fluid. Their momentum equation is used to compute the electric field, assuming quasineutrality.

Using Adaptive Mesh Refinement, provided by the library SAMRAI, PHARE aims at filling the gap between sub-ion scales and large “MHD” scales by increasing the mesh resolution wherever the solution needs it.

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