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Shock – Wave– Boundary– Layer Interaction (SWBLI) around Open Flaps of Expert Capsule and their Consideration on Heat and Mechanical Loads under Critical Re-entry Flow Conditions

Bozic, Ognjan and Longo, Jose M. A. and Otto, Hannes (2006) Shock – Wave– Boundary– Layer Interaction (SWBLI) around Open Flaps of Expert Capsule and their Consideration on Heat and Mechanical Loads under Critical Re-entry Flow Conditions. 57th International Astronautical Congress 2006,Space Transportation Symp. (D2.) - Future Space Transportation Systems Technologies (5.), 2006-10-02 - 2006-10-6, Valencia , Spain.

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Abstract

In the frame of EXPERT project DLR is proposing a flight experiment on shock-wave boundary-layer interaction (SWBLI) with shear-layer reattachment on control surfaces to improve our understanding about flap efficiency and heating due to high temperature 3D effects, radiation-cooling effects, transition, turbulence (unsteadiness) and strong viscous hypersonic interaction. The objective of the present work is applying CFD to estimate for the most critical flight condition the maximal aerothermodynamic loads on the capsule surface, with a special emphasis on the flaps and their surrounding. The very important questions to be answered for the design of the flaps are the determination of the magnitude and location of the maximum temperatures with respect to the vehicle surface and its corresponding internal structure. The CFD results for temperature, heat flux and surface pressure calculated for the selected critical flight condition show that the proposed concept for the instrumentation of both flaps and the capsule surfaces underneath the flaps is, generally in agreement with preliminary studies, but properties of TPS material on the flaps cavity flange should be enhanced to meet technical feasibility.

Document Type:Conference or Workshop Item (Paper)
Title:Shock – Wave– Boundary– Layer Interaction (SWBLI) around Open Flaps of Expert Capsule and their Consideration on Heat and Mechanical Loads under Critical Re-entry Flow Conditions
Authors:
AuthorsInstitution or Email of Authors
Bozic, OgnjanUNSPECIFIED
Longo, Jose M. A.UNSPECIFIED
Otto, HannesUNSPECIFIED
Date:2 October 2006
Refereed publication:No
In ISI Web of Science:No
Number of Pages:12
Editors:
EditorsEmail
International Astronautic Federation, UNSPECIFIED
Series Name:CD-ROM
Status:Published
Keywords:SWBLI, aerothermodynamic, shear-layer-reattachment, heat loads, flaps, CFD simulation
Event Title:57th International Astronautical Congress 2006,Space Transportation Symp. (D2.) - Future Space Transportation Systems Technologies (5.)
Event Location:Valencia , Spain
Event Type:international Conference
Event Dates:2006-10-02 - 2006-10-6
Organizer:International Astronautic Federation
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):W - Grundlagen Raumtransport - numerische Verfahren (old)
Location: Köln-Porz , Braunschweig , Göttingen
Institutes and Institutions:Institute of Aerodynamics and Flow Technology
Deposited By: Dr.-Ing. Ognjan Bozic
Deposited On:03 Sep 2007
Last Modified:12 Dec 2013 20:27

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