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Numerical Study of the Subsonic Base Flow with a Side Support

You, Yancheng and Oßwald, Kai and Lüdeke, Heinrich and Hannemann, Volker (2011) Numerical Study of the Subsonic Base Flow with a Side Support. Fourth Symposium on Hybrid RANS-LES Methods, 28.-30. Sep. 2011, Peking, China.

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Abstract The base flow of a generic rocket model is investigated numerically with different levels of turbulence modelling. At the nominal flow conditions, the comparison with the experiments shows significant deviations in the vertical plane where a side support stands as well as the base pressure distribution. A simulation of the open test section is presented, which indicates on the one hand a correction of the measured pressure values and on the other hand a angle of attack modification in comparing the DES results with the experimental values. Based on both correction the DES results agree well with the experiment. A strong sensitivity towards small angles of attack has been observed in the experiments but not in respective RANS solutions. Although no variation of the angle of attack has been performed with a DES, the DES seems to capture this sensitivity.

Item URL in elib:https://elib.dlr.de/95483/
Document Type:Conference or Workshop Item (Speech)
Title:Numerical Study of the Subsonic Base Flow with a Side Support
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
You, Yanchengyancheng.you (at) dlr.deUNSPECIFIED
Oßwald, Kaikai.osswald (at) dlr.deUNSPECIFIED
Lüdeke, Heinrichheinrich.luedeke (at) dlr.deUNSPECIFIED
Hannemann, Volkervolker.hannemann (at) dlr.deUNSPECIFIED
Refereed publication:No
Open Access:No
Gold Open Access:No
In ISI Web of Science:No
Keywords:Base Flows, Detach Eddy Simulation, Subsonic, Rocket
Event Title:Fourth Symposium on Hybrid RANS-LES Methods
Event Location:Peking, China
Event Type:international Conference
Event Dates:28.-30. Sep. 2011
Organizer:Tshinghua University, CSTAM, DLR, ATAAC
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 - Shefex III (old)
Location: Braunschweig , Göttingen
Institutes and Institutions:Institute of Aerodynamics and Flow Technology > Spacecraft
Deposited By: Seyfried, Beate
Deposited On:03 Mar 2015 16:38
Last Modified:03 Mar 2015 16:38

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