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Experimental Study of the Dynamic Stability of the Exomars Capsule

Gülhan, Ali and Klevanski, Josef and Willems, Sebastian (2011) Experimental Study of the Dynamic Stability of the Exomars Capsule. In: Proceedings of 7th European Symposium on Aerothermodynamics. ESA Communications. 7th European Symposium on Aerothermodynamics, 9.-12. Mai 2011, Brügge, Belgien. ISBN 978 92 9221 256 8. ISSN 1609-042X

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Abstract

Damping derivatives of the Exomars capsule have been measured using free oscillation technique in the Trisonic Windtunnel TMK. A cross flexure instrumented with strain gauges measured the dynamic motion of the model in a Mach number range from 1.8 to 3.5. Reynolds number and angle of attack of the capsule were also varied during experiments. The results show a strong dependency of damping derivatives on the Mach number and angle of attack. Compared to the laminar flow on the smooth surface roughness induced transition seems to effect the dynamic stability of the vehicle remarkably.

Document Type:Conference or Workshop Item (Paper)
Title:Experimental Study of the Dynamic Stability of the Exomars Capsule
Authors:
AuthorsInstitution or Email of Authors
Gülhan, AliAli.Guelhan@dlr.de
Klevanski, JosefJosef.Klevanski@dlr.de
Willems, Sebastiansebastian.willems@dlr.de
Date:August 2011
Journal or Publication Title:Proceedings of 7th European Symposium on Aerothermodynamics
Refereed publication:No
In SCOPUS:No
In ISI Web of Science:No
Editors:
EditorsEmail
Ouwehand, L.UNSPECIFIED
Publisher:ESA Communications
ISSN:1609-042X
ISBN:978 92 9221 256 8
Status:Published
Keywords:EXOMARS, damping derivative, dynamic stability, capsule
Event Title:7th European Symposium on Aerothermodynamics
Event Location:Brügge, Belgien
Event Type:international Conference
Event Dates:9.-12. Mai 2011
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Space Science and Exploration
DLR - Research area:Raumfahrt
DLR - Program:R EW - Erforschung des Weltraums
DLR - Research theme (Project):R - Projekt ExoMars
Location: Köln-Porz
Institutes and Institutions:Institute of Aerodynamics and Flow Technology > Supersonic and Hypersonic Technology
Deposited By: Sebastian Willems
Deposited On:13 Jan 2012 07:59
Last Modified:13 Jan 2012 07:59

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