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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. 17. STAB-Workshop, 10.-11. November 2015, Göttingen, Deutschland.

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Official URL: http://www.dlr.de/agstab

Abstract

There exist several sources of instability and mechanisms leading to turbulence which are specific to hypersonic flows over blunt capsules. One of them are discrete surface inhomogeneities such as attachment-point cavities, compression pads, gaps or steps between heat shield tiles or unevenly ablated thermal protection material, which can lead to premature laminar-turbulent transition downstream of the protuberance element or even bypass transition if the roughness height/cavity depth is sufficiently large.

Item URL in elib:https://elib.dlr.de/98380/
Document Type:Conference or Workshop Item (Speech)
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:No
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Page Range:pp. 68-69
Series Name:Jahresbericht 2015, STAB Mitteilung
Status:Published
Keywords:re-entry capsule, roughness element, transition, 2D spatial stability theory
Event Title:17. STAB-Workshop
Event Location:Göttingen, Deutschland
Event Type:Workshop
Event Dates:10.-11. November 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 - Military Technologies
Location: Göttingen
Institutes and Institutions:Institute of Aerodynamics and Flow Technology > High Speed Configurations
Deposited By: Micknaus, Ilka
Deposited On:23 Nov 2015 16:56
Last Modified:10 May 2016 23:31

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