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Reynolds Stress Models for Shock - Turbulence lnteraction

Karl, Sebastian and Hickey, Jean Pierre and Lacombe, Francis (2017) Reynolds Stress Models for Shock - Turbulence lnteraction. 31 st International Symposium on Shock Waves, 09.-14.Juli 2017, Nagoya, Japan.

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Official URL: http://akagi.nuae.nagoya-u.ac.jp/issw31/ScientificProgram.html

Abstract

A systematic deficiency of current turbulence models which are based on the Reynolds averaged Navier-Stokes equations (RANS) is their inability to correctly predict the interaction of turbulence with shocks. This is because RANS models do not account for the unsteady motion or fragmentation of the shock wave within the interaction zone. Typically, significant over-prediction of the turbulent energy amplification occurs without dedicated adjustment of the applied turbulence model. An empirical shock correction for Reynolds-Stress models (RSM) is proposed. This corrective model is based on rescaling of the production and re-distribution terms in the Reynolds stress and length scale equations. The method is tested for two common RSM models and enables them to correctly predict the turbulence amplification, anisotropy and dissipation downstream of the interaction with a normal shock wave.

Item URL in elib:https://elib.dlr.de/111831/
Document Type:Conference or Workshop Item (Speech)
Title:Reynolds Stress Models for Shock - Turbulence lnteraction
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Karl, Sebastiansebastian.karl (at) dlr.deUNSPECIFIED
Hickey, Jean PierreUniversity of Waterloo, Department of Mechanical and Mechatronics Engineering, Waterloo, CanadaUNSPECIFIED
Lacombe, FrancisEcole Polytechnique de Montreal, Department of Mechanical Engineering, Montreal, CanadaUNSPECIFIED
Date:2017
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Published
Keywords:CFD, Turbulenz
Event Title:31 st International Symposium on Shock Waves
Event Location:Nagoya, Japan
Event Type:international Conference
Event Dates:09.-14.Juli 2017
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Space Transport
DLR - Research area:Raumfahrt
DLR - Program:R RP - Raumtransport
DLR - Research theme (Project):R - Raumfahrzeugsysteme - Anlagen u. Messtechnik
Location: Göttingen
Institutes and Institutions:Institute for Aerodynamics and Flow Technology > Spacecraft, GO
Deposited By: Bachmann, Barbara
Deposited On:12 Jan 2018 14:12
Last Modified:12 Jan 2018 14:12

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