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Length-Scale Correction for Reynolds Stress Modeling

Eisfeld, Bernhard and Rumsey, Christopher (2019) Length-Scale Correction for Reynolds Stress Modeling. AIAA. AIAA Aviation 2019, 17.-21. Juni 2019, Dallas, TX, USA. DOI: 10.2514/6.2019-2961

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A length-scale correction term is developed for the SSG/LRR-<greek>w</greek> Reynolds-stress model that is based on an analysis of the Yap correction. The model with and without the correction is implemented into two flow solvers and applied to four flows featuring separation. The length-scale correction increases the negative skin friction within separation bubbles and moves the reattachment point downstream. It remedies the unphysical back-bending of streamlines near reattachment that has been observed with the original model.

Item URL in elib:https://elib.dlr.de/128086/
Document Type:Conference or Workshop Item (Speech)
Title:Length-Scale Correction for Reynolds Stress Modeling
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Eisfeld, BernhardBernhard.Eisfeld (at) dlr.deUNSPECIFIED
Rumsey, ChristopherNASA LangleyUNSPECIFIED
Date:17 June 2019
Refereed publication:Yes
Gold Open Access:No
In ISI Web of Science:No
DOI :10.2514/6.2019-2961
Keywords:Turbulence modeling, Reynolds-stress model, length-scale
Event Title:AIAA Aviation 2019
Event Location:Dallas, TX, USA
Event Type:international Conference
Event Dates:17.-21. Juni 2019
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:fixed-wing aircraft
DLR - Research area:Aeronautics
DLR - Program:L AR - Aircraft Research
DLR - Research theme (Project):L - VicToria
Location: Braunschweig
Institutes and Institutions:Institute for Aerodynamics and Flow Technology > CASE, BS
Deposited By: Eisfeld, Dr.-Ing. Bernhard
Deposited On:22 Jul 2019 12:01
Last Modified:22 Jul 2019 12:01

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