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论文类型：期刊论文

发表时间：1998-04-01

发表刊物：SCIENCE IN CHINA SERIES E-TECHNOLOGICAL SCIENCES

收录刊物：SCIE、Scopus

卷号：41

期号：2

页面范围：169-175

ISSN号：1006-9321

关键字：condensation heat transfer enhancement; porous coating; interfacial stress force; numerical simulation

摘要：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.