We consider the two-dimensional problem of steady natural convection in a narrow Horizontal Cylindrical annulus filled with porous medium due to a constant temperature variation on the outer and adiabatic conditions at the inner boundaries with constant volumetric heat flux The solution is expanded in powers of a single combined similarity parameter, which is the product of the Gap ratio to the power of two, and Rayleigh number. The series is extended by means of symbolic calculation up to 28 terms. Analysis of these expansions allows the exact computation for arbitrarily accuracy up to 50000 figures. Although the range of the radius of convergence is small, but Pade approximation leads our results to be good even for much higher value of the similarity parameter.
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ASME 2008 First International Conference on Micro/Nanoscale Heat Transfer
June 6–9, 2008
Tainan, Taiwan
Conference Sponsors:
- Nanotechnology Institute
ISBN:
0-7918-4292-4
PROCEEDINGS PAPER
Natural Convection With Porous Medium in a Narrow Horizontal Cylindrical Annulus With Constant Volumetric Heat Flux Available to Purchase
Kamyar Mansour
Kamyar Mansour
Amirkabir University of Technology, Tehran, Iran; Flow Research and Engineering, Los Gatos, CA
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Kamyar Mansour
Amirkabir University of Technology, Tehran, Iran; Flow Research and Engineering, Los Gatos, CA
Paper No:
MNHT2008-52273, pp. 763-768; 6 pages
Published Online:
June 22, 2009
Citation
Mansour, K. "Natural Convection With Porous Medium in a Narrow Horizontal Cylindrical Annulus With Constant Volumetric Heat Flux." Proceedings of the ASME 2008 First International Conference on Micro/Nanoscale Heat Transfer. ASME 2008 First International Conference on Micro/Nanoscale Heat Transfer, Parts A and B. Tainan, Taiwan. June 6–9, 2008. pp. 763-768. ASME. https://doi.org/10.1115/MNHT2008-52273
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