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Underresolved Turbulence Simulations with Stabilized High-Order Discontinuous Galerkin Methods

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The Discontinuous Galerkin Spectral Element (DGSEM) is highly attractive for both DNS and LES of turbulent flows due to its low approximation error and efficient parallel scaling. We show that even in underresolved situations, the solution quality benefits greatly from very high order approximations. We present computations of canonical turbulent flows and compare stabilized DGSEM methods with more traditional schemes for both LES and DNS of these cases.

Author(s):

Andrea Beck    
Institute for Aerodynamics and Gasdynamics, University of Stuttgart
Germany

Gregor Gassner    
Institute for Aerodynamics and Gasdynamics, University of Stuttgart
Germany

Claus-Dieter Munz    
Institute for Aerodynamics and Gasdynamics, University of Stuttgart
Germany