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Please use this identifier to cite or link to this item: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/26228

Title: Effects of eddy diffusivity in film condensation on a horizontal tube
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;Turbulen
Date: 2007-01
Issue Date: 2011-10-20T08:34:30Z
Publisher: Int. Communications in Heat and Mass Transfer
Abstract: Abstract:It is an investigation into turbulent film condensation on a horizontal tube. In order to forecast the results more exactly, a new theory model of local film shear stress (τ / τw) is presented in the paper. In the study, four models of different eddy diffusivity are considered. The numerical calculation is obtained by using Visual C++. The result shows that among the four models, the difference between the higher value and the lower value of the mean Nusselt number is about 10.1%. Besides, the results developed in the current study are compared with those generated by previous theoretical results. The result shows that the present paper considering film local shear has a higher mean Nusselt number than the previous ones that exclude the film local shear.
Relation: 34(1), pp.52-61
URI: http://ntour.ntou.edu.tw/handle/987654321/26228
Appears in Collections:[輪機工程學系] 期刊論文

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