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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 (2015) Assessment of Local LES-Resolution Sensors for Hybrid RANS/LES Simulations. In: Progress in Hybrid RANS-LES Modelling Notes on Numerical Fluid Mechanics and Multidisciplinary Design, 130. Springer International Publishing, Switzerland. pp. 93-103. doi: 10.1007/978-3-319-15141-0_7. ISBN 978-3-319-15140-3. ISSN 1612-2909.

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Official URL: http://link.springer.com/chapter/10.1007/978-3-319-15141-0_7


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/89211/
Document Type:Contribution to a Collection
Additional Information:Online ISBN: 978-3-319-15141-0, Book Part: Part II
Title:Assessment of Local LES-Resolution Sensors for Hybrid RANS/LES Simulations
AuthorsInstitution or Email of AuthorsAuthor's 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
Journal or Publication Title:Progress in Hybrid RANS-LES Modelling
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:No
DOI :10.1007/978-3-319-15141-0_7
Page Range:pp. 93-103
Publisher:Springer International Publishing, Switzerland
Series Name:Notes on Numerical Fluid Mechanics and Multidisciplinary Design
Keywords:Mesh resolution, hybrid RANS/LES, TAU, IDDES, Adaptation
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:12 May 2015 15:35
Last Modified:12 May 2015 15:35

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