Mixed and Free Convection Over a Rotating Sphere With Blowing and Suction

[+] Author and Article Information
Fue-Sang Lien, Cha’o-Kuang Chen

Department of Mechanical Engineering, National Cheng Kung University, Tainan, Taiwan, Republic of China

J. W. Cleaver

Department of Mechanical Engineering, The University of Liverpool, Liverpool, England, United Kingdom

J. Heat Transfer 108(2), 398-404 (May 01, 1986) (7 pages) doi:10.1115/1.3246936 History: Received October 15, 1984; Online October 20, 2009


An analysis is performed to study the flow and heat transfer characteristics for the case of laminar mixed convection and pure free convection about a rotating permeable sphere. The transformed conservation equations of the nonsimilar boundary layers are solved by an efficient finite difference method. It is found from the numerical results that both the local friction factor and the local Nusselt number increase with increasing rotation parameter and buoyancy force for aiding flow. The agreement of solutions obtained by the present method with others is found to be good.

Copyright © 1986 by ASME
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