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Hawaii Geothermal Project : free convection about a vertical cylinder embedded in a porous medium

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Title: Hawaii Geothermal Project : free convection about a vertical cylinder embedded in a porous medium
Authors: Minkowycz, W.J.
Cheng, Ping
Keywords: Hawaii Geothermal Project
LC Subject Headings: Geothermal resources--Hawaii--Hawaii Island
Issue Date: 1975
Publisher: Hawaii Geothermal Project, University of Hawaii at Manoa
Citation: Minkowycz WJ, Cheng P. 1975. Hawaii Geothermal Project: Free convection about a vertical cylinder embedded in a porous medium. Honolulu (HI): University of Hawaii. HGP technical report, 11.
Series/Report no.: Hawaii Geothermal Project: Technical Report No. 11
Abstract: An analysis is made for free convective flow about a vertical cylinder embedded in a saturated porous medium, where surface temperature of the cylinder varies as xλ, a power function of distance from the leading edge. Within the framework of boundary layer approximations, exact solution is obtained for the special case where surface temperature varies linearly with x, i.e., λ = 1. For other values of λ, approximate solutions based on local similarity and local non-similarity models are obtained. It is found that the local similarity solutions are sufficiently accurate for all practical purposes. Analytical expressions for local surface heat flux and overall surface heat flux are obtained.
Sponsor: Prepared under National Science Foundation Research Grant No. GI-38319 and Energy Research and Development Administration Research Grant No. E(04-3)-1093.
Pages/Duration: 22 pages
URI/DOI: http://hdl.handle.net/10125/20981
Appears in Collections:The Geothermal Collection


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