Unsteady Stagnation Point Heat Transfer with Blowing or Suction

[+] Author and Article Information
Takao Sano

Department of Mechanical Engineering, University of Osaka Prefecture, Sakai, Osaka, Japan

J. Heat Transfer 103(3), 448-452 (Aug 01, 1981) (5 pages) doi:10.1115/1.3244484 History: Received May 11, 1979; Online October 20, 2009


The effects of blowing and suction on unsteady heat transfer at a stagnation point due to a step change in wall temperature are examined. Two asymptotic solutions for the temperature field at large and small Prandtl numbers are presented. It is shown that the asymptotic solution for large Prandtl number gives sufficiently accurate results for the surface heat transfer even for the moderate values of Prandtl number if Euler transformation is applied to the series.

Copyright © 1981 by ASME
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