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Implicit LES of a Turbulent Channel Flow with High-Order Discontinuous Galerkin and Finite Volume Discretization

  • M. BergmannEmail author
  • C. Morsbach
  • M. Franke
Conference paper
Part of the ERCOFTAC Series book series (ERCO, volume 25)

Abstract

Owing to the permanently growing computational resources and the known predictive deficiencies of unsteady Reynolds averaged Navier-Stokes simulations, scale-resolving simulations become affordable methods to further study the unsteady phenomena of complex flows. Especially high-order spatial discretizations, such as the discontinuous Galerkin method, seem to be well suited for these simulations due to their superior dispersion and dissipation properties in comparison to their low-order counterparts. In this paper, we investigate the implicit large eddy simulations of a fully developed turbulent channel flow with an high-order discontinuous Galerkin method and a second-order accurate finite volume method. Statistical quantities, obtained with varying approximation orders but by using the same number of degrees of freedom, are compared to reference DNS data.

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Copyright information

© Springer Nature Switzerland AG 2019

Authors and Affiliations

  1. 1.Institute of Propulsion Technology, German Aerospace Center (DLR)CologneGermany

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