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Hypersonic interference heating on cones with short three-dimensional protuberances

Kumar, CS and Reddy, KPJ (2014) Hypersonic interference heating on cones with short three-dimensional protuberances. In: EXPERIMENTAL THERMAL AND FLUID SCIENCE, 55 . pp. 29-41.

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Official URL: http://dx.doi.org/10.1016/j.expthermflusci.2014.02...

Abstract

Heat fluxes around short, three-dimensional protuberances on sharp and blunt cones in hypersonic flow were experimentally measured using platinum thin-film sensors deposited on macor inserts. A parametric study of different protrusion geometries and flow conditions were conducted. Excessive heating was observed at locations near the protrusion where increased vorticity is expected, with the hottest spot being presented at the foot of the protuberance immediately upstream of it. If left unchecked, these hot spots could prove detrimental to hypersonic flight vehicles. Z-type schlieren technique was used to visualize the flow features qualitatively. New correlations to predict the heat flux at the hot spot have been proposed. (C) 2014 Elsevier Inc. All rights reserved.

Item Type: Journal Article
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Additional Information: Copyright for this article belongs to the ELSEVIER SCIENCE INC, 360 PARK AVE SOUTH, NEW YORK, NY 10010-1710 USA
Keywords: Hypersonic flow; Laminar boundary layer; Three-dimensional flow interference; Flow separation; Platinum thin-film gauges
Department/Centre: Division of Mechanical Sciences > Aerospace Engineering (Formerly, Aeronautical Engineering)
Date Deposited: 23 Jul 2014 10:34
Last Modified: 23 Jul 2014 10:34
URI: http://eprints.iisc.ernet.in/id/eprint/49513

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