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Natural Convection Heat and Mass Transfer From a Horizontal Cylinder of Elliptic Cross Section with Constant Wall Temperature and Concentration in Saturated Porous Media

Published online by Cambridge University Press:  05 May 2011

C.-Y. Cheng
C.-Y. Cheng*
Affiliation:
Department of Mechanical Engineering, Southern Taiwan University of Technology, Yungkang, Taiwan 71005, R.O.C.
*
* Professor
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Abstract

This work studies the natural convection heat and mass transfer near a horizontal cylinder of elliptic cross section with constant wall temperature and concentration in a fluid-saturated porous medium. A coordinate transformation is used to obtain the nonsimilar governing boundary layer equations. The transformed governing equations are then solved by the cubic spline collocation method. Results for the local Nusselt and Sherwood numbers are presented as functions of the Lewis number, the buoyancy ratio, and the aspect ratio when the major axis of the elliptical cylinder is vertical (slender orientation) and horizontal (blunt orientation). The heat and mass transfer rates of the elliptical cylinder with slender orientation are higher than those with blunt orientation.

Keywords

Heat and mass transferNatural convectionPorous mediumCylinder of elliptic cross section
Type
Technical Note
Information
Journal of Mechanics , Volume 22 , Issue 3 , September 2006 , pp. 257 - 261
Copyright
Copyright © The Society of Theoretical and Applied Mechanics, R.O.C. 2006

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References

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