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Improved conservation properties for particle-in-cell simulations with kinetic electrons

J L V Lewandowski2003年Plasma Physics and Controlled FusionIF 2.2出版社

It is shown that a simple algorithm which exactly segregates between adiabatic and nonadiabatic electrons in particle-in-cell simulations of drift modes yields excellent conservation properties (e.g. particle number, energy) compared to the conventional δf scheme. The removal of the free streaming term in the evolution of the marker weight is shown to be responsible for the improved linear and nonlinear properties of the simulated plasma.

日本語訳

ドリフトモードの粒子インセルシミュレーションにおいて、断熱電子と非断熱電子を正確に分離する単純なアルゴリズムが、従来のδfスキームと比較して優れた保存特性(例えば、粒子数、エネルギー)をもたらすことが示されている。マーカー重みの時間発展における自由ストリーミング項の除去が、シミュレーションされたプラズマの線形および非線形特性の改善の原因であることが示されている。

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