Wolf, Christian and You, Yancheng and Hörnschemeyer, R. and Lüdeke, Heinrich and Hannemann, Volker (2013) Base-flow sensitivity of a generic rocket forbody towards small freestream angles. In: Progress in Flight Physics Eucass Book Series, 5 (6). Torus Press. pp. 169-190. doi: 10.1051/eucass/201305169. ISBN 978-2-7598-0877-9.
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Official URL: http://dx.doi.org/10.1051/eucass/201305169
Abstract
Experimental and numerical investigations have been conducted regarding the wake flow of a generic rocket model in subsonic freestream conditions. The bluff base geometry evokes a recirculation area represented by counterrotating vortices. Experiments using Particle Image Velocimetry (PIV) demonstrate that the spatial organization of this area is heavily dependent on small freestream angles (α, β < 1°), associated with a significant shift in the base pressure distribution. Numerical studies using Reynolds-Averaged Navier-Stokes (RANS) methods with one- and twoequation turbulence models are able to predict the mean velocity field as well as tendencies regarding α and β, but lack the sensitivity of the experiments. The mean pressure level on the base is calculated within 10% of the experimental value using the two-equation turbulence model, although the pressure distributions on the base show distinct differences.
Item URL in elib: | https://elib.dlr.de/92555/ | ||||||||||||||||||||||||
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Document Type: | Contribution to a Collection | ||||||||||||||||||||||||
Additional Information: | Bibliographic Code: 2013EUCAS...5..169W, Publication Date: 06/2013 | ||||||||||||||||||||||||
Title: | Base-flow sensitivity of a generic rocket forbody towards small freestream angles | ||||||||||||||||||||||||
Authors: |
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Date: | 2013 | ||||||||||||||||||||||||
Journal or Publication Title: | Progress in Flight Physics | ||||||||||||||||||||||||
Refereed publication: | Yes | ||||||||||||||||||||||||
Open Access: | No | ||||||||||||||||||||||||
Gold Open Access: | No | ||||||||||||||||||||||||
In SCOPUS: | No | ||||||||||||||||||||||||
In ISI Web of Science: | No | ||||||||||||||||||||||||
Volume: | 5 | ||||||||||||||||||||||||
DOI: | 10.1051/eucass/201305169 | ||||||||||||||||||||||||
Page Range: | pp. 169-190 | ||||||||||||||||||||||||
Editors: |
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Publisher: | Torus Press | ||||||||||||||||||||||||
Series Name: | Eucass Book Series | ||||||||||||||||||||||||
ISBN: | 978-2-7598-0877-9 | ||||||||||||||||||||||||
Status: | Published | ||||||||||||||||||||||||
Keywords: | Base-flow sensitivity, freestream angles, Particle Image Velocimetry (PIV), Reynolds-Averaged Navier-Stokes (RANS), | ||||||||||||||||||||||||
HGF - Research field: | Aeronautics, Space and Transport | ||||||||||||||||||||||||
HGF - Program: | Space | ||||||||||||||||||||||||
HGF - Program Themes: | Space Transportation | ||||||||||||||||||||||||
DLR - Research area: | Raumfahrt | ||||||||||||||||||||||||
DLR - Program: | R RP - Space Transportation | ||||||||||||||||||||||||
DLR - Research theme (Project): | R - Proj. Thermas (old) | ||||||||||||||||||||||||
Location: | Braunschweig , Göttingen | ||||||||||||||||||||||||
Institutes and Institutions: | Institute of Aerodynamics and Flow Technology > Spacecraft | ||||||||||||||||||||||||
Deposited By: | Micknaus, Ilka | ||||||||||||||||||||||||
Deposited On: | 05 Dec 2014 13:17 | ||||||||||||||||||||||||
Last Modified: | 22 Dec 2015 09:18 |
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