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, firstly in a low-turbulence uniform hot gas stream, secondly in a high-turbulence, uniform hot gas stream, and thirdly in a high-turbulence, nonuniform hot gas stream present 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 cascade inlet in cold-flow conditions and the average gas temperature at the cascade inlet.
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July 1988
Research Papers
Influence of Upstream Flow Conditions on the Heat Transfer to Nozzle Guide Vanes
V. Krishnamoorthy,
V. Krishnamoorthy
Propulsion Division, National Aeronautical Laboratory, Bangalore—560 017, India
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B. R. Pai,
B. R. Pai
Propulsion Division, National Aeronautical Laboratory, Bangalore—560 017, India
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S. P. Sukhatme
S. P. Sukhatme
Department of Mechanical Engineering, Indian Institute of Technology, Powai, Bombay—400076, India
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V. Krishnamoorthy
Propulsion Division, National Aeronautical Laboratory, Bangalore—560 017, India
B. R. Pai
Propulsion Division, National Aeronautical Laboratory, Bangalore—560 017, India
S. P. Sukhatme
Department of Mechanical Engineering, Indian Institute of Technology, Powai, Bombay—400076, India
J. Turbomach. Jul 1988, 110(3): 412-416 (5 pages)
Published Online: July 1, 1988
Article history
Received:
February 1, 1988
Online:
November 9, 2009
Citation
Krishnamoorthy, V., Pai, B. R., and Sukhatme, S. P. (July 1, 1988). "Influence of Upstream Flow Conditions on the Heat Transfer to Nozzle Guide Vanes." ASME. J. Turbomach. July 1988; 110(3): 412–416. https://doi.org/10.1115/1.3262212
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