Coupled heat and mass transfer by natural convection from slender bodies of revolution in porous media

F. C. Lai, C. Y. Choi, F. A. Kulacki

Research output: Contribution to journalArticlepeer-review

23 Scopus citations

Abstract

Analytical study of buoyancy induced heat and mass transfer from a slender body of revolution embedded in a saturated porous medium has been reported for two important cases: (1) a paraboloid with constant temperature and concentration, (2) a cylinder with linear temperature and concentration distribution. The governing parameters for the problem under study are the buoyancy ratio, N, and Lewis number, Le. Depending on the sign of the buoyancy ratio, the inclusion of a concentration gradient may assist or suppress the flow induced by thermal buoyancy. The Lewis number is found to have a much pronounced effect on the concentration field than it does on the flow and temperature field. The computed results have covered a wide range of the governing parameters, i.e., -1 < N < 10 and 0.1 < Le < 50.

Original languageEnglish (US)
Pages (from-to)609-620
Number of pages12
JournalInternational Communications in Heat and Mass Transfer
Volume17
Issue number5
DOIs
StatePublished - Jan 1 1990

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