Development of a new heat transfer optimization method for compressible   fluid flows and it numerical verifications

doi:10.1016/j.ijheatmasstransfer.2016.04.051

CORC > 北京大学 > 工学院

	Development of a new heat transfer optimization method for compressible fluid flows and it numerical verifications
	Sun, Meng-He ; Zhang, Xin-Rong ; Chen, Lin
刊名	INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
	2016
关键词	Compressible fluid Variable property Field synergy equation Entransy dissipation Optimization TEMPERATURE-DEPENDENT VISCOSITY ENTROPY GENERATION NATURAL CIRCULATION SOLAR COLLECTOR DISSIPATION CONVECTION SYSTEM PRINCIPLE EXCHANGER ENTRANSY
DOI	10.1016/j.ijheatmasstransfer.2016.04.051
英文摘要	A general optimization criterion for heat transfer process is developed based on the entransy theory. Then, a modified field synergy principle for compressible viscous fluid, which represents the irreversibility of the specific heat transfer processes, is discussed. Modified field synergy equations are set up and theoretically, the solution of the modified field synergy equations under the constraint conditions of a given mean kinetic energy is able to show the optimal flow field, in which the amount of heat transfer is maximized. In the study, a numerical simulation of the heat transfer processes of air in a cavity is selected as the numerical verification of the modified field synergy equations. Numerical simulation results show that asymmetric vortices are generated in the flow field due to the variation of the density. These vortices enhance the heat transfer performance in the absence of too much work dissipation. Comparisons among the results of the Navier Stokes equations, the existed laminar field synergy equations, and the modified field synergy equations are made. The results confirm that the equations developed in this study correspond to the best heat-transfer performance when the density of fluid changes with temperature or pressure. (C) 2016 Elsevier Ltd. All rights reserved.; National Science Foundation of China [51276001]; Common Development Fund of Beijing; SCI(E); EI; ARTICLE; menghe.sun@pku.edu.cn; xrzhang@pku.edu.cn; 267-275; 100
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/437032]
专题	工学院
推荐引用方式 GB/T 7714	Sun, Meng-He,Zhang, Xin-Rong,Chen, Lin. Development of a new heat transfer optimization method for compressible fluid flows and it numerical verifications[J]. INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER,2016.
APA	Sun, Meng-He,Zhang, Xin-Rong,&Chen, Lin.(2016).Development of a new heat transfer optimization method for compressible fluid flows and it numerical verifications.INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER.
MLA	Sun, Meng-He,et al."Development of a new heat transfer optimization method for compressible fluid flows and it numerical verifications".INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER (2016).