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Convective Heat Transfer of the Flow through a Rotating Circular Straight Pipe

Published online by Cambridge University Press:  05 May 2011

U. Lei  and
Arthur C. Y. Yang
U. Lei*
Affiliation:
Institute of Applied Mechanics, National Taiwan University, Taipei, Taiwan 10617, R.O.C.
Arthur C. Y. Yang*
Affiliation:
Institute of Applied Mechanics, National Taiwan University, Taipei, Taiwan 10617, R.O.C.
*
* Professor
** Director, Optical Recording Group, Key Technology Corporation
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Abstract

Laminar heat transfer for large ranges of Reynolds numbers, rotational Reynolds numbers, and Prandtl numbers are studied numerically for incompressible fully developed flow in a circular straight pipe, which is rotating constantly about an axis perpendicular to its own axis under the constant wall temperature gradient condition. There exist four types of local Nusselt number distributions associated with the four different flow regimes for different parameters depending on the relative importance of different forces. Correlations of the averaged Nusselt number are also provided. When the Prandtl number is sufficiently large, the temperature distribution in the core is determined essentially by the secondary flow. Scaling analyses are provided for understanding the essential physics of the problem.

Keywords

Convective heat transferRotating pipe flowSecondary flowLocal Nusselt number
Type
Articles
Information
Journal of Mechanics , Volume 17 , Issue 2 , June 2001 , pp. 79 - 91
Copyright
Copyright © The Society of Theoretical and Applied Mechanics, R.O.C. 2001

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References

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