Communication Dans Un Congrès Année : 2021

Sparse grid approach to accelerate Particle-In-Cell Technique: application to the Hall thruster ExB instability

Résumé

The Particle-In-Cell (PIC) technique couples a Lagrangian method to describe charged particles transport with Eulerian approach to resolve Maxwell’s equations. They are extensively used in the context of low temperature plasmas. For such applications, the self-induced magnetic field generated by charged particle currents is negligible and Maxwell’s equations reduce to Poisson’s equation. For accuracy and stability of explicit schemes, electrostatic PIC algorithm needs to resolve the Debye length and the inverse of plasma frequency, leading to severe constrains in term of grid spacing and timestep, respectively.

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Dates et versions

hal-04734957 , version 1 (14-10-2024)

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  • HAL Id : hal-04734957 , version 1

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Laurent Garrigues, M Chung-To-Sang, G Fubiani, Clément Guillet, Fabrice Deluzet, et al.. Sparse grid approach to accelerate Particle-In-Cell Technique: application to the Hall thruster ExB instability. 48th IEEE International Conference on Plasma Science, Sep 2021, Lake Tahoe (Nevada), France. ⟨hal-04734957⟩
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