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Please use this identifier to cite or link to this item: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/26169

Title: An analysis of turbulent film condensation on a sphere with variable wall temperature under the effect of local shear stress
Authors: Hai-Ping Hu
Contributors: 國立臺灣海洋大學:輪機工程學系
Keywords: Amplitude;Eddy
Date: 2007-11
Issue Date: 2011-10-20T08:34:20Z
Publisher: Applied Mathematical Modelling
Abstract: Abstract:This paper presents an investigation into turbulent film condensation on a sphere with variable wall temperature. Under the wide range of vapor velocity, the wall temperature and the local film shear stress were considered. The result shows that under the high velocity vapor, the increase of the temperature amplitude will bring out a larger Nusselt number, and the increase is about 2.7–5.6%. Besides, under the effect of the local film shear stress, the mean Nusselt number will decrease about 0.65–0.8%. Furthermore, the paper then discusses the influence of shears and temperature amplitudes on the local dimensionless film thickness and heat transfer characteristics. Finally, the results developed in the current study are compared with those generated by previous theoretical results.
Relation: 31(11), pp.2577–2588
URI: http://ntour.ntou.edu.tw/handle/987654321/26169
Appears in Collections:[輪機工程學系] 期刊論文

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