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

Theiß, Alexander and Hein, Stefan (2017) Investigation on the wake flow instability behind isolated roughness elements on the forebody of a blunt generic reentry capsule. In: Progress in Flight Physics pp. 451-480. doi: 10.1051/eucass/201709451. ISBN 978-5-94588-215-7.

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Official URL: https://doi.org/10.1051/eucass/201709451

Abstract

Numerical results on modal disturbance growth in the wake flow downstream of a roughness element submerged in the boundary layer of a typical reentry 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 (2D) 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/114932/
Document Type:Book Section
Additional Information:Published online: 20 June 2017
Title:Investigation on the wake flow instability behind isolated roughness elements on the forebody of a blunt generic reentry capsule
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Theiß, Alexanderalexander.theiss (at) dlr.deUNSPECIFIED
Hein, StefanStefan.Hein (at) dlr.deUNSPECIFIED
Date:20 June 2017
Journal or Publication Title:Progress in Flight Physics
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Volume:9
DOI :10.1051/eucass/201709451
Page Range:pp. 451-480
Editors:
EditorsEmailEditor's ORCID iD
UNSPECIFIEDEDP SciencesUNSPECIFIED
ISBN:978-5-94588-215-7
Status:Published
Keywords:re-entry capsule, blunt body, roughness-induced transition, LST-2D
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 (old)
Location: Göttingen
Institutes and Institutions:Institute for Aerodynamics and Flow Technology > High Speed Configurations, GO
Deposited By: Bachmann, Barbara
Deposited On:23 Nov 2017 16:07
Last Modified:06 Nov 2020 13:32

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