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Indexed by:期刊论文

Date of Publication:1998-04-01

Journal:SCIENCE IN CHINA SERIES E-TECHNOLOGICAL SCIENCES

Included Journals:SCIE、Scopus

Volume:41

Issue:2

Page Number:169-175

ISSN No.:1006-9321

Key Words:condensation heat transfer enhancement; porous coating; interfacial stress force; numerical simulation

Abstract:Film condensation on a vertical porous coated plate is investigated numerically for a porous/fluid composite system based on the dispersion effect in the porous coating. The mathematical model improves the conventional matching conditions by considering the stress force at the porous coating interface. The numerical results show the effects of the porous coating thickness, the effective thermal conductivity and the permeability on condensate film thickness and local Nusselt number. The predicted average Nusselt number has similar tendencies to experimental results reported in literature, such that using a thin porous coating would be a viable alternative for enhancing the condensation heat transfer.