Bergmann, Michael and Gölden, Rebecca and Morsbach, Christian (2018) Numerical investigation of split form nodal discontinuous Galerkin schemes for the implicit LES of a turbulent channel flow. In: ECCOMAS - - ECFD 2018 - 6th European Conference on Computational Mechanics (Solids, Structures and Coupled Problems) / 7th European Conference on Computational Fluid Dynamics. ECCOMAS ECCM ECFD, 11. - 15. Juni 2018, Glasgow, Schottland.
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Abstract
Gassner et al. (Split form nodal discontinuous Galerkin schemes with summation - by - parts property for the compressible Euler equations. Journal of Computational Physics, 327:3966, Dec. 2016) proposed a promising alternative stabilization technique for the discontinuous Galerkin scheme, which relies on the reformulation of the non-linear advection terms into split forms. It has been observed, that these split forms can stabilize the inviscid Taylor Green Vortex with high-order approximations, which are unstable with over-integration. In this paper, we apply different split form discontinous Galerkin schemes for the implicit large eddy simulation of a fully developed turbulent channel flow and investigate their robustness and accuracy for wall-bounded flows. Furthermore, we compare these results to implicit large eddy simulation with over-integrated high-order approximations in terms of statistical values and turbulence spectra. Finally, we show that the use of high-order split form discontinuous Galerkin scheme can significantly improve the results in comparison to low-order discretizations.
Item URL in elib: | https://elib.dlr.de/126168/ | ||||||||||||
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Document Type: | Conference or Workshop Item (Speech) | ||||||||||||
Title: | Numerical investigation of split form nodal discontinuous Galerkin schemes for the implicit LES of a turbulent channel flow | ||||||||||||
Authors: |
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Date: | June 2018 | ||||||||||||
Journal or Publication Title: | ECCOMAS - - ECFD 2018 - 6th European Conference on Computational Mechanics (Solids, Structures and Coupled Problems) / 7th European Conference on Computational Fluid Dynamics | ||||||||||||
Refereed publication: | Yes | ||||||||||||
Open Access: | No | ||||||||||||
Gold Open Access: | No | ||||||||||||
In SCOPUS: | No | ||||||||||||
In ISI Web of Science: | No | ||||||||||||
Status: | Published | ||||||||||||
Keywords: | Split form, Discontinuous Galerkin, LES, Channel flow | ||||||||||||
Event Title: | ECCOMAS ECCM ECFD | ||||||||||||
Event Location: | Glasgow, Schottland | ||||||||||||
Event Type: | international Conference | ||||||||||||
Event Dates: | 11. - 15. Juni 2018 | ||||||||||||
HGF - Research field: | Aeronautics, Space and Transport | ||||||||||||
HGF - Program: | Aeronautics | ||||||||||||
HGF - Program Themes: | propulsion systems | ||||||||||||
DLR - Research area: | Aeronautics | ||||||||||||
DLR - Program: | L ER - Engine Research | ||||||||||||
DLR - Research theme (Project): | L - Virtual Engine and Validation methods (old) | ||||||||||||
Location: | Köln-Porz | ||||||||||||
Institutes and Institutions: | Institute of Propulsion Technology > Numerical Methodes | ||||||||||||
Deposited By: | Bergmann, Michael | ||||||||||||
Deposited On: | 23 Jan 2019 15:36 | ||||||||||||
Last Modified: | 23 Jan 2019 15:36 |
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