elib
DLR-Header
DLR-Logo -> http://www.dlr.de
DLR Portal Home | Imprint | Contact | Deutsch
Fontsize: [-] Text [+]

Investigation of the Influence of the Improved Isolation of SiC and C-SiC Plates on the Heat Flux Distribution.

Gülhan, A. (1994) Investigation of the Influence of the Improved Isolation of SiC and C-SiC Plates on the Heat Flux Distribution. DLR-Interner Bericht. 39113-94A05, 25 S.

Full text not available from this repository.

Abstract

Gas surface interaction phenomena in a high enthalpy flow field are strongly influenced by the catalytic activity of the surface. A water-cooled flat plate which allows to mount ceramic materials on it has been used in LBK. But heat losses from the ceramic materials to the water-cooled part of the plate dominates the catalytic effects and makes it difficult to study their influences on the heat flux rate. SiC and C-SiC materials were mounted on the flat plate using a teflon isolation and tests were performed at two different angles of attack. The isolation reduced the heat losses and improved the temperature distribution on the surface remarkably. Surface temperatures were measured by means of an IR camera and a spectral pyrometer. Pitot pressure distribution and cold wall heat flux rates were measured and compared with numerical results using a quasi one-dimensional code including chemical non-equilibrium phenomena. Axial pressure and heat flux distribution on the flat plate were determined.

Document Type:Monograph (DLR-Interner Bericht)
Additional Information: LIDO-Berichtsjahr=1994,
Title:Investigation of the Influence of the Improved Isolation of SiC and C-SiC Plates on the Heat Flux Distribution.
Authors:
AuthorsInstitution or Email of Authors
Gülhan, A.UNSPECIFIED
Date:1994
Number of Pages:25
Status:Published
Keywords:Arc-heated Wind Tunnel, High Enthalpy Flow, Water-cooled Flat Plate, SiC and C-SiC Materials, Teflon Isolation
HGF - Research field:UNSPECIFIED
HGF - Program:Space (old)
HGF - Program Themes:W RP - Raumtransport
DLR - Research area:UNSPECIFIED
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:02 Apr 2006
Last Modified:27 Apr 2009 05:28

Repository Staff Only: item control page

Browse
Search
Help & Contact
Informationen
electronic library is running on EPrints 3.3.12
Copyright © 2008-2012 German Aerospace Center (DLR). All rights reserved.