Communications on Applied Mathematics and Computation ›› 2022, Vol. 4 ›› Issue (1): 143-179.doi: 10.1007/s42967-020-00102-5

• ORIGINAL PAPERS • 上一篇    下一篇

Goal-Oriented Anisotropic hp-Adaptive Discontinuous Galerkin Method for the Euler Equations

Vít Dolejší, Filip Roskovec   

  1. Faculty of Mathematics and Physics, Charles University, Sokolovská 83, 186 75 Prague, Czech Republic
  • 收稿日期:2020-06-16 修回日期:2020-11-02 出版日期:2022-03-20 发布日期:2022-03-01
  • 通讯作者: Vít Dolejší, Filip Roskovec E-mail:dolejsi@karlin.mf.cuni.cz;roskovec@gmail.com
  • 基金资助:
    This work was supported by Grant no. 20-01074S of the Czech Science Foundation.

Goal-Oriented Anisotropic hp-Adaptive Discontinuous Galerkin Method for the Euler Equations

Vít Dolejší, Filip Roskovec   

  1. Faculty of Mathematics and Physics, Charles University, Sokolovská 83, 186 75 Prague, Czech Republic
  • Received:2020-06-16 Revised:2020-11-02 Online:2022-03-20 Published:2022-03-01
  • Contact: Vít Dolejší, Filip Roskovec E-mail:dolejsi@karlin.mf.cuni.cz;roskovec@gmail.com
  • Supported by:
    This work was supported by Grant no. 20-01074S of the Czech Science Foundation.

摘要: We deal with the numerical solution of the compressible Euler equations with the aid of the discontinuous Galerkin (DG) method with focus on the goal-oriented error estimates and adaptivity. We analyse the adjoint consistency of the DG scheme where the adjoint problem is not formulated by the diferentiation of the DG form and the target functional but using a suitable linearization of the nonlinear forms. Furthermore, we present the goaloriented anisotropic hp-mesh adaptation method for the Euler equations. The theoretical results are supported by numerical experiments.

关键词: Euler equations, Discontinuous Galerkin method, Target functional, Adjoint consistency, Anisotropic hp-mesh adaptation

Abstract: We deal with the numerical solution of the compressible Euler equations with the aid of the discontinuous Galerkin (DG) method with focus on the goal-oriented error estimates and adaptivity. We analyse the adjoint consistency of the DG scheme where the adjoint problem is not formulated by the diferentiation of the DG form and the target functional but using a suitable linearization of the nonlinear forms. Furthermore, we present the goaloriented anisotropic hp-mesh adaptation method for the Euler equations. The theoretical results are supported by numerical experiments.

Key words: Euler equations, Discontinuous Galerkin method, Target functional, Adjoint consistency, Anisotropic hp-mesh adaptation

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