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
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
Collection year 2001
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
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