Skin-friction measurements in a supersonic combustor with crossflow fuel injection

Tanno, H., Paull, A. and Stalker, R. J. (2001) Skin-friction measurements in a supersonic combustor with crossflow fuel injection. Journal of Propulsion And Power, 17 6: 1333-1338. doi:10.2514/2.5883


Author Tanno, H.
Paull, A.
Stalker, R. J.
Title Skin-friction measurements in a supersonic combustor with crossflow fuel injection
Journal name Journal of Propulsion And Power   Check publisher's open access policy
ISSN 0748-4658
Publication date 2001-11-01
Sub-type Article (original research)
DOI 10.2514/2.5883
Open Access Status Not Open Access
Volume 17
Issue 6
Start page 1333
End page 1338
Total pages 6
Place of publication Washington, D.C. U.S.A.
Publisher American Institute of Aeronautics and Astronautics
Language eng
Subject C1
290299 Aerospace Engineering not elsewhere classified
690302 Space transport
Abstract Shock-tunnel experiments have been performed to measure the effect on skin-friction drag in a supersonic combustor of flow disturbances induced by hydrogen fuel injection transverse to the airstream. Constant-area, circular cross section combustors of lengths varying up to 0.52 m were employed. The experiments were done at a stagnation enthalpy of 7.2 MJ . kg(-1) and a Mach number of 4.3, with a boundary layer that was turbulent downstream of the 0.14-m station in the combustors. Combustor skin-friction drag was measured by a method based on the stress wave force balance, the method being validated by agreement between fuel-off skin-friction drag measurements and predictions using existing skin-friction theories. When fuel was injected, it was found that the drag remained at fuel-off values. Thus, the streamwise vortices and other flow disturbances induced by the fuel injection, mixing, and combustion, which are expected to be present in a scramjet combustor, did not influence the skin-friction drag of the combustors.
Keyword Engineering, Aerospace
Shock Tunnel
Propulsion
Scramjet
Q-Index Code C1

Document type: Journal Article
Sub-type: Article (original research)
Collections: School of Mechanical & Mining Engineering Publications
School of Information Technology and Electrical Engineering Publications
 
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Created: Wed, 15 Aug 2007, 01:23:52 EST