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Article Dans Une Revue Journal of Computational Physics Année : 2022

A semi-implicit electromagnetic FEM-PIC scheme with exact energy and charge conservation

Valentin Pagès
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Résumé

This article presents a new charge-and energy-conserving semi-implicit method (ChECSIM) for the Vlasov-Maxwell system. The Particle-in-Cell space dis-cretization involves a structure-preserving Finite Element Method for the fields, and the time discretization is an adaption of Lapenta's energy-conserving semi-implicit method (ECSIM) [31], which essentially consists of improving the latter with appropriate charge-conserving current deposition terms and an explicit correction step. As such, the resulting scheme is free of nonlinear iterations, and it preserves both energy and charge exactly.
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Dates et versions

hal-02521069 , version 1 (27-03-2020)
hal-02521069 , version 2 (29-09-2020)
hal-02521069 , version 3 (17-09-2021)

Identifiants

  • HAL Id : hal-02521069 , version 3

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Valentin Pagès, Martin Campos Pinto. A semi-implicit electromagnetic FEM-PIC scheme with exact energy and charge conservation. Journal of Computational Physics, 2022. ⟨hal-02521069v3⟩
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