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Scientific Computing Group Seminars - Detail View

Speaker: J Qiu

Affiliation: Colorado School of Mines

Talk Title: Conservative high order semi-Lagrangian method for the Vlasov Equation

Invited by: Chi-Wang Shu

Time: Feb. 27 2009 11 a.m.

Location: 182 George Street, Room 110

Abstract:

We propose a novel semi-Lagrangian method for the Vlasov equation, which combines Strang splitting in time with WENO reconstruction in space. A key insight is that the spatial interpolation matrices, used in the reconstruction process, can be factored into flux matrices, because of which WENO can be applied. The CFL time step restriction is removed in the semi-Lagrangian framework. The quality of the method is demonstrated by several classical problems in plasma physics.