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Title: Turbulent film condensation on an isothermal cone surface
Authors: Hai-Ping Hu;Cha’o-Kuang Chen
Contributors: 國立臺灣海洋大學:輪機工程學系
Keywords: Eddy;Turbulent;Cone
Date: 2006-03-01
Issue Date: 2011-10-20T08:34:49Z
Publisher: Heat and Mass Transfer
Abstract: Abstract:It is an investigation of turbulent film condensation on an isothermal cone. The present paper describes the eddy diffusivity of two turbulent models. And then it discusses the film thickness and heat transfer characteristics under the different turbulent models. The results show the mean heat transfer coefficient on two forms of eddy diffusivity, and there is a variation on the two models. Furthermore, the current results are compared with those generated by previous theoretical investigations. It is found that in high vapor velocity, the mean heat transfer was greater than that of the laminar flow theory. Under the high vapor velocity region, the eddy effect will be an important factor for the heat transfer of turbulent condensate film. Besides, in the low vapor velocity region, the eddy diffusivity seldom influences the heat transfer of condensate film.
Relation: 42(5), pp.378-386
Appears in Collections:[Department of Marine Engineering] Periodical Articles

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