Constructal entransy dissipation rate minimization for helm-shaped fin with inner heat sources

查看全文 作　　者：FENG [1,2,3]HuiJun;CHEN [1,2,3]LinGen;XIE [1,2,3]ZhiHui;SUN [1,2,3]FengRui

机构地区：[1]Institute of Thermal Science and Power Engineering, Naval University of Engineering;[2]Military Key Laboratory for Naval Ship Power Engineering, Naval University of Engineering;[3]College of Power Engineering, Naval University of Engineering

出　　处：《Science China(Technological Sciences)》索引2015年第58卷第6期,共7页

基　　金：supported by the National Natural Science Foundation of China(Grant Nos.51176203 and 51356001);the Natural Science Foundation for Youngsters of Naval University of Engineering(Grant No.HGDQNJJ15007) 摘　　要：A model of three-dimensional helm-shaped body composed of a helm-shaped fin and inner heat sources is built in this paper. For the specified volumes of the body, fin and heat source, the constructal optimizations of the body with single and multiple inner heat sources are implemented. The entransy-dissipation-rate-based equivalent thermal resistance(ETR) is minimized in the optimizations. It shows that for the helm-shaped body with multiple inner heat sources, there exist an optimal ratio of the heat source distance to the radius of the extended fin and a twice optimal radius ratio of the centre fin to the extended fin which lead to the double minimum dimensionless ETR. Comparing the optimal result of the body with helm-shaped fin with that with annular fin, the radius of the centre fin and the distance between the heat source and the center of the body are decreased, and the ETR is decreased by 9.57%. Essentially, the temperature gradient field of the helm-shaped body is more homogenous, and its global heat transfer performance is improved. 关键词：内部热源耗散率鳍片构形舵温度梯度场半径比传热性能

相关文献

参考文献（54）
引证文献（14）
耦合文献（127）

参考文献(54)

引证文献(14)

耦合文献(127)

互联网出版许可证新出网证(渝)字10号全国400电话 - 免长途话费

Constructal entransy dissipation rate minimization for helm-shaped fin with inner heat sources

参考文献(54)

引证文献(14)

耦合文献(127)

用户提示