Influence of upstream flow conditions on the heat transfer to nozzle guide vanes

Krishnamoorthy, V and Pal, BR and Sukhatme, SP (1988) Influence of upstream flow conditions on the heat transfer to nozzle guide vanes. Journal of Turbomachinery, Transactions, 110 . pp. 412-416.

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Abstract

The influence of a combustor located just upstream of a nozzle guide vane cascade on the heat flux distribution to the nozzle guide vane was experimentally investigated. The surface temperature distribution around the convectively cooled vane of the cascade was obtained by locating the cascade (1) in a low-turbulence uniform hot gas stream, (2) in a high- turbulence uniform hot gas stream, and (3) in a high-turbulence nonuniform hot gas stream just downstream of the combustor exit. The results indicate that the increased blade surface temperatures observed for the cascade placed just downstream of the combustor can be accounted for by the prevailing turbulence level measured at the cascade inlet in cold-flow conditions and the average gas temperature

Item Type: Journal Article
Additional Information: Copyright for this article belongs to ASME
Uncontrolled Keywords: Combustion chambers;Guide vanes;Heatflux;Heat transfer;Nozzle flow;Turbine blades;Cascade flow;Gas flow;High temperature gases;Temperature distribution
Subjects: ENGINEERING > Fluid Mechanics and Thermodynamics
Division/Department: Propulsion Division, Propulsion Division, Other
Depositing User: M/S ICAST NAL
Date Deposited: 13 Oct 2006
Last Modified: 24 May 2010 09:51
URI: http://nal-ir.nal.res.in/id/eprint/2962

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