Construction of Modern Robust Nodal Discontinuous Galerkin Spectral Element Methods for the Compressible Navier–Stokes Equations

نویسندگان

چکیده

Discontinuous Galerkin (DG) methodsCompressible Navier–Stokes equations, compressible flow haveSpectral element method a long history in computational physics and engineering to approximate solutions of partial differential equations due their high-order accuracyAccuracy geometric flexibility. However, DG is not perfect there remain some issues. Concerning robustness, has undergone an extensive transformation over the past seven years into its modern form that provides statements on solution boundedness for linear nonlinear problems. This chapter takes constructive approach introduce incarnation spectral methodSpectral equationsCompressible three-dimensional curvilinearCurvilinear context. The groundwork numerical scheme comes from classic principles methods including polynomial approximations Gauss-type quadratures. We identify aliasingAliasing as one underlying cause robustness issues classical methods. Removing said errors requires particular differentiation matrix careful discretization advective flux terms governing equations.

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ژورنال

عنوان ژورنال: Courses and lectures

سال: 2021

ISSN: ['0254-1971', '2309-3706']

DOI: https://doi.org/10.1007/978-3-030-60610-7_3