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Experimental and numerical approach for the qualification of TPS components in different planetary entry conditions

Gülhan, A. and Esser, B. and Hannemann, K. and Karl, S. (2003) Experimental and numerical approach for the qualification of TPS components in different planetary entry conditions. 4th European Workshop "Hot Structures and Thermal Protection Systems for Space Vehicles", Palermo, 26.-29.11.2002.

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Abstract

Comparative tests using a cold wall heat flux sensor and the TPS basic material SiC were performed for Martian and air atmosphere on a stagnation point model. Completely different cold wall heat flux rates and surface temperature development on a SiC-probe were measured in air and Martian atmosphere at comparable gas mass flow rate and reservoir pressure levels. The flow field in the free stream and around the model was computed with DLR#s CEVCATS-N code including chemical and thermal nonequilibrium effects for the high enthalpy flow. A second series of tests was performed on a symmetric wedge model at three different angles of attack. Heat flux measurements were taken at the stagnation point and at two locations on the wedge surface. The experimental results are compared with numerical computations of the flow field around the wedge.

Document Type:Conference or Workshop Item (Speech)
Additional Information: LIDO-Berichtsjahr=2004,
Title:Experimental and numerical approach for the qualification of TPS components in different planetary entry conditions
Authors:
AuthorsInstitution or Email of Authors
Gülhan, A.UNSPECIFIED
Esser, B.UNSPECIFIED
Hannemann, K.UNSPECIFIED
Karl, S.UNSPECIFIED
Date:2003
Page Range:pp. 177-184
Status:Published
Event Title:4th European Workshop "Hot Structures and Thermal Protection Systems for Space Vehicles", Palermo, 26.-29.11.2002
Organizer:ESA
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Space (old)
HGF - Program Themes:W RP - Raumtransport
DLR - Research area:Space
DLR - Program:W RP - Raumtransport
DLR - Research theme (Project):UNSPECIFIED
Location: Köln-Porz
Institutes and Institutions:Institute of Aerodynamics and Flow Technology > Supersonic and Hypersonic Technology
Deposited By: elib DLR-Beauftragter
Deposited On:31 Jan 2006
Last Modified:14 Jan 2010 21:05

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