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Turbulence Modeling for Free Shear Flows

Eisfeld, Bernhard (2019) Turbulence Modeling for Free Shear Flows. AIAA. AIAA Aviation 2019, 17.-21. Juni 2019, Dallas, TX, USA. DOI: 10.2514/6.2019-2962

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It is shown that for theoretical reasons in self-preserving free shear flows governed by the boundary-layer equations there must exist a region, in which the Reynolds stress anisotropies are constant. The theoretical result is confirmed by an analysis of well established experimental data for the plane jet, the axisymmetric jet and the plane mixing layer. The values of the corresponding Reynolds-stress anisotropies are determined, revealing differences between the corresponding eigensystems of these flows. Numerical predictions can be improved by a suitable calibration of the pressure-strain correlation of a Reynolds-stress model.

Item URL in elib:https://elib.dlr.de/128088/
Document Type:Conference or Workshop Item (Speech)
Title:Turbulence Modeling for Free Shear Flows
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Eisfeld, BernhardBernhard.Eisfeld (at) dlr.deUNSPECIFIED
Date:17 June 2019
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In ISI Web of Science:No
DOI :10.2514/6.2019-2962
Keywords:Free shear flows, anisotropy, turbulence modeling
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 12:03
Last Modified:31 Jul 2019 20:25

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