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Base-flow sensitivity of a generic rocket forbody towards small freestream angles

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.

Full text not available from this repository.

Official URL: http://dx.doi.org/10.1051/eucass/201305169


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/
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
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
You, Yanchengyangcheng.you (at) dlr.deUNSPECIFIED
Lüdeke, Heinrichheinrich.luedeke (at) dlr.deUNSPECIFIED
Hannemann, Volkervolker.hannemann (at) dlr.deUNSPECIFIED
Journal or Publication Title:Progress in Flight Physics
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:No
DOI :10.1051/eucass/201305169
Page Range:pp. 169-190
EditorsEmailEditor's ORCID iD
Reijasse, PhilippeOnera, FranceUNSPECIFIED
Knight, DoyleRutgers, USAUNSPECIFIED
Ivanov, MikhailComputational Aerodynamics Laboratory of the Khristianovich Institute of Theoretical and Applied Mechanics of the Siberian Branch of the Russian Academy of SciencesUNSPECIFIED
Publisher:Torus Press
Series Name:Eucass Book Series
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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