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Assessment of Local LES-Resolution Sensors for Hybrid RANS/LES Simulations

Reuß, Silvia and Knopp, Tobias and Probst, Axel and Orlt, Matthias (2014) Assessment of Local LES-Resolution Sensors for Hybrid RANS/LES Simulations. 5th Symposium on Hybrid RANS-LES Methods, 19. - 21. March 2014, College Station, Texas, USA.

Full text not available from this repository.

Official URL: http://mwikicfd.mace.manchester.ac.uk/hrlm/

Abstract

Different sensors that provide a measure for the resolution of the LES content in hybrid RANS/LES computations are proposed and investigated. In an apriori test on isotropic turbulence a suitable sensor is identified. Based on that sensor an automatic local mesh refinement is performed for an IDDES of the flow over a backward facing step. The results obtained on locally adapted grids are compared to results on globally refined grids. It is shown, that the proposed sensors can detect underresolved LES regions and that the local mesh refinement can help to reduce resolution errors caused by a too coarse grid spacing.

Item URL in elib:https://elib.dlr.de/89151/
Document Type:Conference or Workshop Item (Speech)
Additional Information:The paper will appear in Numerical Notes in Fluid Mechanics and Multidisciplinary Optimisation (NNFM).
Title:Assessment of Local LES-Resolution Sensors for Hybrid RANS/LES Simulations
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Reuß, Silviasilvia.reuss (at) dlr.deUNSPECIFIED
Knopp, TobiasTobias.Knopp (at) dlr.deUNSPECIFIED
Probst, Axelaxel.probst (at) dlr.deUNSPECIFIED
Orlt, Matthiasmatthias.orlt (at) dlr.deUNSPECIFIED
Date:2014
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Page Range:pp. 1-10
Series Name:Session 3
Status:Published
Keywords:Mesh resolution, hybrid RANS/LES, TAU, IDDES, Adaptation
Event Title:5th Symposium on Hybrid RANS-LES Methods
Event Location:College Station, Texas, USA
Event Type:international Conference
Event Dates:19. - 21. March 2014
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:Aircraft Research (old)
DLR - Research area:Aeronautics
DLR - Program:L AR - Aircraft Research
DLR - Research theme (Project):L - Simulation & Validation (old)
Location: Göttingen
Institutes and Institutions:Institute of Aerodynamics and Flow Technology > C²A²S²E - Center for Computer Applications in AeroSpace Science and Engineering
Deposited By: Micknaus, Ilka
Deposited On:20 May 2014 13:21
Last Modified:21 Oct 2014 13:47

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