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Investigation on the wake flow instability behind isolated roughness elements on the forebody of a blunt generic re-entry capsule

Theiß, Alexander and Hein, Stefan (2015) Investigation on the wake flow instability behind isolated roughness elements on the forebody of a blunt generic re-entry capsule. 6th European Conference for Aeronautics and Space Sciences - EUCASS -, 29. Jun. - 03. Jul. 2015, Kraków, Poland.

Full text not available from this repository.

Official URL: http://www.eucass2015.eu/

Abstract

Numerical results on modal disturbance growth in the wake flow downstream of a roughness element submerged in the boundary layer of a typical re-entry capsule at an angle of attack are presented. Laminar base flow computations were conducted for different roughness heights and planform shapes. The modal instability characteristics of the wake flow were studied by spatial two-dimensional eigenvalue analysis. For all cases considered, the varicose wake modes are most amplified in terms of maximum N-factors, with the cylindrical roughness element being the most effective shape.

Item URL in elib:https://elib.dlr.de/96735/
Document Type:Conference or Workshop Item (Speech)
Additional Information:FP_EUCASS-514
Title:Investigation on the wake flow instability behind isolated roughness elements on the forebody of a blunt generic re-entry capsule
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Theiß, Alexanderalexander.theiss (at) dlr.deUNSPECIFIED
Hein, Stefanstefan.hein (at) dlr.deUNSPECIFIED
Date:2015
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Page Range:pp. 1-15
Series Name:Conference Proceedings on USB-Stick
Status:Published
Keywords:re-entry capsule, blunt body, transition, 2D spatial LST, roughness, wake flow
Event Title:6th European Conference for Aeronautics and Space Sciences - EUCASS -
Event Location:Kraków, Poland
Event Type:international Conference
Event Dates:29. Jun. - 03. Jul. 2015
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:fixed-wing aircraft
DLR - Research area:Aeronautics
DLR - Program:L AR - Aircraft Research
DLR - Research theme (Project):L - Flight Physics
Location: Göttingen
Institutes and Institutions:Institute of Aerodynamics and Flow Technology > High Speed Configurations
Deposited By: Micknaus, Ilka
Deposited On:12 Aug 2015 14:07
Last Modified:23 Sep 2015 15:36

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