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Transpiration Cooling Tests of Porous CMC in Hypersonic Flow

Reimer, Thomas and Kuhn, Markus and Gülhan, Ali and Esser, Burkard and Sippel, Martin and van Foreest, Arnold (2011) Transpiration Cooling Tests of Porous CMC in Hypersonic Flow. 17th AIAA International Space Planes and Hypersonic Systems and Technologies Conference, 11.-14. Apr 2011, San Francisco, USA.

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Abstract

During hypersonic flight the temperatures on the vehicle can reach very high values in certain locations. A hypersonic flight vehicle needs to be designed aerodynamically efficient. That results in rather small nose and leading edge radii which drives up thermal loads due to the fact that the loads depend on the curvature radius of these elements. Therefore thermal protections is required for these elements. However, even ceramics reach their use temperature limits when e.g. the leading edge radius of a space plane is in the order of only a few centimeters. Transpiration cooling could be a means to handle the thermal loads in certain critical locations for a hypersonic flight vehicle. This paper describes the loads derived for a conceptual space plane vehicle, the SpaceLiner, and also reports on the initial tests for transpiration cooling of ceramic matrix composites in the hypersonic flow of an arc jet facility.

Document Type:Conference or Workshop Item (Speech, Paper)
Additional Information:AIAA-2011-2251
Title:Transpiration Cooling Tests of Porous CMC in Hypersonic Flow
Authors:
AuthorsInstitution or Email of Authors
Reimer, Thomasthomas.reimer@dlr.de
Kuhn, Markusmarkus.kuhn@dlr.de
Gülhan, AliUNSPECIFIED
Esser, BurkardUNSPECIFIED
Sippel, MartinUNSPECIFIED
van Foreest, ArnoldUNSPECIFIED
Date:12 April 2011
Refereed publication:Yes
In ISI Web of Science:No
Status:Published
Keywords:Arc-Jet Testing, CMC, Ceramic Matrix Composite, Fluid Transpiration, Permeability, Spaceliner, Transpiration Cooling
Event Title:17th AIAA International Space Planes and Hypersonic Systems and Technologies Conference
Event Location:San Francisco, USA
Event Type:international Conference
Event Dates:11.-14. Apr 2011
Organizer:American Institute of Aeronautics and Astronautics
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 - EU Projekte Raumtransport (old)
Location: Köln-Porz , Bremen , Stuttgart
Institutes and Institutions:Institute of Space Systems > Systemanalyse Raumtransport
Institute of Aerodynamics and Flow Technology > Supersonic and Hypersonic Technology
Institute of Structures and Design > Space Structural Components
Deposited By: Markus Kuhn
Deposited On:26 Apr 2011 10:44
Last Modified:12 Dec 2013 21:17

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