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Jack Coughlin (University of Washington)
Wednesday 16 March 2022, 11:00-12:00
Asymptotic-preserving dynamical low-rank approximations to the Vlasov-Fokker-Planck system
- đ¤ Speaker: Jack Coughlin (University of Washington)
- đ Date & Time: Wednesday 16 March 2022, 11:00 - 12:00
- đ Venue: Seminar Room 2, Newton Institute
Abstract
Authors: Jack Coughlin (University of Washington), Jingwei Hu (University of Washington) The Vlasov-Maxwell-Landau system can provide a high fidelity reproduction of plasma physics, but only at great computational cost. Recently, the dynamical low-rank method has been applied to kinetic simulation of plasmas, with promising results. The existence of low-rank structure in asymptotic limits of collisional kinetic equations is further motivation for its application to this class of systems. We introduce the dynamical low-rank method and the robust projector-splitting integrator. We then discuss an asymptotic-preserving discretization for the high-field limit of the Vlasov-Ampere system, a simplification of the Vlasov-Maxwell system
Series This talk is part of the Isaac Newton Institute Seminar Series series.
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