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Assessment of g-Equation Formulation for a Second-Moment Reynolds Stress Turbulence Model

Togiti, Vamshi and Eisfeld, Bernhard (2015) Assessment of g-Equation Formulation for a Second-Moment Reynolds Stress Turbulence Model. 22nd AIAA computational Fluid dynmaics Conference, 22-26 Jun 2015, Dallas, Tx, USA. doi: 10.2514/6.2015-2925.

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Official URL: http://arc.aiaa.org/doi/abs/10.2514/6.2015-2925


In this work, an alternative formulation for the specific dissipation rate in the Speziale-Sarkar-Gatski / Launder-Reece-Rodi Reynolds stress model is assessed. Here, g=1/omega) is considered as an alternative for ! and the performance of the g-equation is assessed for a range of test cases, which include validation test cases to flows around industry relevant configurations. Comparison of predictions shows that the predictions are similar to omega predictions and yet demonstrate less dependency on the near-wall grid resolution due to the natural boundary condition at solid walls.

Item URL in elib:https://elib.dlr.de/97456/
Document Type:Conference or Workshop Item (Speech)
Title:Assessment of g-Equation Formulation for a Second-Moment Reynolds Stress Turbulence Model
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Togiti, Vamshivamshi.togiti (at) dlr.deUNSPECIFIED
Eisfeld, Bernhardbernhard.eisfeld (at) dlr.deUNSPECIFIED
Date:June 2015
Refereed publication:No
Open Access:No
Gold Open Access:No
In ISI Web of Science:No
DOI :10.2514/6.2015-2925
Series Name:Conference Porceedings online
Keywords:Reynolds stress model, SSG/LRR, length-scale equation.
Event Title:22nd AIAA computational Fluid dynmaics Conference
Event Location:Dallas, Tx, USA
Event Type:international Conference
Event Dates:22-26 Jun 2015
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 - Simulation and Validation (old)
Location: Braunschweig
Institutes and Institutions:Institute of Aerodynamics and Flow Technology > C²A²S²E - Center for Computer Applications in AeroSpace Science and Engineering
Deposited By: Togiti, Vamshi
Deposited On:25 Nov 2015 09:58
Last Modified:25 Nov 2015 09:58

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