Numerical study of fluid flow and heat transfer in a flat-plate channel with longitudinal vortex generators by applying field synergy principle analysis

被引：165

作者：

Tian, Li-Ting ^{[1
]}

He, Ya-Ling ^{[1
]}

Lei, Yong-Gang ^{[1
]}

Tao, Wen-Quan ^{[1
]}

机构：

[1] Xi An Jiao Tong Univ, Sch Energy & Power Engn, State Key Lab Multiphase Flow Power Engn, Xian 710049, Peoples R China

来源：

INTERNATIONAL COMMUNICATIONS IN HEAT AND MASS TRANSFER | 2009年 / 36卷 / 02期

基金：

中国国家自然科学基金;

关键词：

Longitudinal vortex generator; Heat transfer enhancement; Pressure loss penalty; Field synergy principle; TRANSFER ENHANCEMENT; RECTANGULAR CHANNEL; TURBULENT FLOWS; VORTICES;

D O I：

10.1016/j.icheatmasstransfer.2008.10.018

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

Three dimensional numerical simulations are performed on laminar heat transfer and fluid flow characteristics of a flat-plate channel with longitudinal vortex generators (LVGs). The effects of two different shaped LVGs, rectangular winglet pair (RWP) and delta winglet pair (DWP) with two different configurations, common-flow-down (CFD) and common-flow-up (M), are studied. The numerical results indicate that the application of LVGs effectively enhances heat transfer of the channel. According to the performance evaluation parameter, (Nu/Nu(o))/(f/f(o)), the channel with DWP has better overall performance than RWP; the CFD and CFU configurations of DWP have almost the same overall performance; the CFD configuration has a better overall performance than the CFU configuration for RWP. The basic mechanism of heat transfer enhancement by LVGs can be well described by the field synergy principle. (C) 2008 Elsevier Ltd. All rights reserved.

引用

页码：111 / 120

页数：10

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