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Please use this identifier to cite or link to this item: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/46891

Title: Effect of Domain Boundary Set on Natural Convection Heat Transfer Characteristics for Vertical Annular Finned Tube Heat Exchanger
Authors: Han-TawChen;Yu-JieChiu;Hung-ChiaTseng;Jiang-RenChang
Contributors: 國立臺灣海洋大學:系統工程暨造船學系
Keywords: CFD along with inverse method;Computational domain boundary set;Natural convection;Finned tube
Date: 2017
Issue Date: 2018-06-08T08:14:25Z
Publisher: International Journal of Heat and Mass Transfer
Abstract: Abstract:The main purpose of this study is to use the three-dimensional commercial package along with experimental data and the inverse result of the heat transfer coefficient to investigate the effect of the computational domain boundary set on the natural convection heat transfer and fluid flow characteristics of single-tube vertical annular fin and tube heat exchanger in a box with an upward opening. Various flow models are introduced. The air temperature and velocity profiles, fin temperature and heat transfer coefficient on the fins are determined by the commercial package. More accurate numerical results and an appropriate flow model can be obtained if the resulting heat transfer coefficient and the fin temperature are close to the inverse result and experimental fin temperature data, respectively. However, differences in boundary condition set at the side walls of the box can affect air velocity and temperature profiles. The choice of the appropriate flow model can also be related to the boundary set of the computational domain. Thus, the suitability of the boundary condition set must be checked at the side walls of the box.
Relation: 109 pp668-682
URI: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/46891
Appears in Collections:[系統工程暨造船學系] 期刊論文

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