Numerical experiments on unstructured PIC stability.

Day, David Minot

doi:10.2172/1013241

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DOE OSTI · 1013241

Numerical experiments on unstructured PIC stability.

Day, David Minot

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Abstract

Particle-In-Cell (PIC) is a method for plasmas simulation. Particles are pushed with Verlet time integration. Fields are modeled using finite differences on a tensor product mesh (cells). The Unstructured PIC methods studied here use instead finite element discretizations on unstructured (simplicial) meshes. PIC is constrained by stability limits (upper bounds) on mesh and time step sizes. Numerical evidence (2D) and analysis will be presented showing that similar bounds constrain unstructured PIC.

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70 PLASMA PHYSICS AND FUSION TECHNOLOGY 97 MATHEMATICS AND COMPUTING COMPUTERIZED SIMULATION FINITE DIFFERENCE METHOD MESH GENERATION PLASMA SIMULATION STABILITY

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Day, David Minot. 2011-04-01. Numerical experiments on unstructured PIC stability.. https://doi.org/10.2172/1013241

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