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
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.
|Title:||Evaluation of Turbulence Models in Predicting Hypersonic and Subsonic Base Flows using Grid Adaptation Techniques|
|Journal or Publication Title:||Chinese Journal of Aeronautics|
|In ISI Web of Science:||Yes|
|Page Range:||pp. 325-334|
|Keywords:||Base flows, Turbulence models, Grid Adaptation, Hypersonic, Subsonic|
|HGF - Research field:||Aeronautics, Space and Transport|
|HGF - Program:||Raumfahrt|
|HGF - Program Themes:||R RP - Raumtransport|
|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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