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A note on the Prandtl number effect on laminar heat transfer and recovery

Published online by Cambridge University Press:  04 July 2016

B. W. van Oudheusden*
Affiliation:
Department of Aerospace EngineeringDelft University of TechnologyDelft, The Netherlands

Abstract

A critical revision is made of the classic power-law expressions that describe the effect of the Prandtl number on laminar heat transfer and temperature recovery for Pr near one, by applying a perturbation analysis to the energy equation for constant-property flow. In this way, the Pr dependence is obtained as a systematic asymptotic expansion up to any desired order, which provides a more accurate and convenient procedure than classic curve-fitting methods. The effect of pressure gradient and flow sweep are examined for self-similar yawed wedge flows.

Type
Technical Note
Copyright
Copyright © Royal Aeronautical Society 1997 

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