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Evaluation of Turbulence Models in Predicting Hypersonic and Subsonic Base Flows using Grid Adaptation Techniques

You, Yancheng and Buanga, Björn and Hannemann, Volker and Heinrich, Lüdeke (2012) Evaluation of Turbulence Models in Predicting Hypersonic and Subsonic Base Flows using Grid Adaptation Techniques. Chinese Journal of Aeronautics, Vol. 25 (3), pp. 325-334. Elsevier Limited. DOI: 10.1016/S1000-9361(11)60393-2. ISSN 1000-9361.

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Official URL: http://dx.doi.org/10.1016/S1000-9361(11)60393-2

Abstract

The flows behind the base of a generic rocket, at both hypersonic and subsonic flow conditions, are numerically studied in this paper. The main concerns are addressed to the evaluation of turbulence models and the using of grid adaptation technique. The investigation focuses on two configurations, related to hypersonic and to subsonic experiments respectively. The applicability tests of different turbulence models are started on the level of two-equation models calculating the steady state solution of the Reynolds averaged Navier-Stokes equations. All used models - the original Wilcox k-ω, the Menter SST and the EARSM formulation - predict an asymmetric base flow in both cases caused by the support of the models. A comparison with preliminary experimental results indicates a preference for the SST and EARSM results over the results from the older k-ω model. Some further calculation of the flow fields around these simplified configurations are suggested to reach a better agreement with experiment results.

Document Type:Article
Title:Evaluation of Turbulence Models in Predicting Hypersonic and Subsonic Base Flows using Grid Adaptation Techniques
Authors:
AuthorsInstitution or Email of Authors
You, Yanchengyancheng.you@dlr.de
Buanga, Björnbjoern.buanga@dlr.de
Hannemann, Volkervolker.hannemann@dlr.de
Heinrich, Lüdekeheirrich.luedeke@dlr.de
Date:April 2012
Journal or Publication Title:Chinese Journal of Aeronautics
Refereed publication:Yes
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:Vol. 25
DOI:10.1016/S1000-9361(11)60393-2
Page Range:pp. 325-334
Publisher:Elsevier Limited
ISSN:1000-9361
Status:Published
Keywords:Base flows, Turbulence models, Grid Adaptation, Hypersonic, Subsonic
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 - Numerische Verfahren und Simulation
Location: Braunschweig , Göttingen
Institutes and Institutions:Institute of Aerodynamics and Flow Technology > Spacecraft
Deposited By: Yancheng You
Deposited On:30 Nov 2011 11:35
Last Modified:04 Apr 2013 16:32

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