Communications on Applied Mathematics and Computation ›› 2022, Vol. 4 ›› Issue (1): 3-33.doi: 10.1007/s42967-020-00088-0

• ORIGINAL PAPERS • 上一篇    下一篇

Comparison of Semi-Lagrangian Discontinuous Galerkin Schemes for Linear and Nonlinear Transport Simulations

Xiaofeng Cai1, Wei Guo2, Jing-Mei Qiu1   

  1. 1 Department of Mathematical Sciences, University of Delaware, Newark, DE 19716, USA;
    2 Department of Mathematics and Statistics, Texas Tech University, Lubbock, TX 70409, USA
  • 收稿日期:2020-03-31 修回日期:2020-06-23 出版日期:2022-03-20 发布日期:2022-03-01
  • 通讯作者: Wei Guo, Xiaofeng Cai, Jing-Mei Qiu E-mail:weimath.guo@ttu.edu;xfcai@udel.edu;jingqiu@udel.edu

Comparison of Semi-Lagrangian Discontinuous Galerkin Schemes for Linear and Nonlinear Transport Simulations

Xiaofeng Cai1, Wei Guo2, Jing-Mei Qiu1   

  1. 1 Department of Mathematical Sciences, University of Delaware, Newark, DE 19716, USA;
    2 Department of Mathematics and Statistics, Texas Tech University, Lubbock, TX 70409, USA
  • Received:2020-03-31 Revised:2020-06-23 Online:2022-03-20 Published:2022-03-01
  • Contact: Wei Guo, Xiaofeng Cai, Jing-Mei Qiu E-mail:weimath.guo@ttu.edu;xfcai@udel.edu;jingqiu@udel.edu

摘要: Transport problems arise across diverse felds of science and engineering. Semi-Lagrangian (SL) discontinuous Galerkin (DG) methods are a class of high-order deterministic transport solvers that enjoy advantages of both the SL approach and the DG spatial discretization. In this paper, we review existing SLDG methods to date and compare numerically their performance. In particular, we make a comparison between the splitting and nonsplitting SLDG methods for multi-dimensional transport simulations. Through extensive numerical results, we ofer a practical guide for choosing optimal SLDG solvers for linear and nonlinear transport simulations.

关键词: Semi-Lagrangian (SL), Discontinuous Galerkin (DG), Transport simulations, Splitting, Non-splitting, Comparison

Abstract: Transport problems arise across diverse felds of science and engineering. Semi-Lagrangian (SL) discontinuous Galerkin (DG) methods are a class of high-order deterministic transport solvers that enjoy advantages of both the SL approach and the DG spatial discretization. In this paper, we review existing SLDG methods to date and compare numerically their performance. In particular, we make a comparison between the splitting and nonsplitting SLDG methods for multi-dimensional transport simulations. Through extensive numerical results, we ofer a practical guide for choosing optimal SLDG solvers for linear and nonlinear transport simulations.

Key words: Semi-Lagrangian (SL), Discontinuous Galerkin (DG), Transport simulations, Splitting, Non-splitting, Comparison

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