The effect of free-stream turbulence on gas turbine blade heat transfer

Krishnamoorthy, V. ; Sukhatme, S. P. (1989) The effect of free-stream turbulence on gas turbine blade heat transfer Journal of Turbomachinery, 111 (4). pp. 497-501. ISSN 0889-504X

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Related URL: http://dx.doi.org/10.1115/1.3262299

Abstract

This paper describes the results of systematic investigations undertaken to study the effect of free-stream turbulence on the heat transfer coefficient distribution around gas turbine rotor blades and nozzle guide vanes. The heat transfer coefficient distribution around the blade surface was obtained under a uniform heat flux boundary condition. Experiments were conducted in the Reynolds number range 2.0-8.1 × 105 (exit Mach number range 0.182 to 0.600) with the free-stream turbulence level in the range 1.0-21.3 percent. A new type of active turbulence generator was used for generating high turbulence levels. Correlations were obtained for the effect of free-stream turbulence on the local heat transfer coefficient in the laminar, transitional, and turbulent boundary layer regions.

Item Type:Article
Source:Copyright of this article belongs to The American Society of Mechanical Engineers.
ID Code:54225
Deposited On:11 Aug 2011 11:53
Last Modified:11 Aug 2011 11:53

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