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Finite Element Scheme for Fokker-Planck Equation in Plasmas
WENG Suming, SHENG Zhengming
CHINESE JOURNAL OF COMPUTATIONAL PHYSICS
2007, 24 (2):
134-140.
A numerical scheme for the Fokker-Planck equation is proposed with a finite element method,which is relatively simple for implementation and physically clear. It assures a positive distribution function and particle-number conservation without specific requirement on grid and time step.The scheme is confirmed in one-dimensional simulations.It can be extended easily to multi-dimensional cases.
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