粗糙肋面上湍流热量传递中场协同关系的数值分析  

NUMERICAL ANALYSIS OF SYNERGY RELATION BETWEEN HEAT FLUX WITH VELOCITY FIELD OF TURBULENCE FLOW ON COARSE WALL

作　　者：陈颖[1] 邓先和[1] 王杨君[1] 

机构地区：[1]华南理工大学教育部传热强化与过程实验室

出　　处：《化工学报》2003年第8期1055-1058,共4页CIESC Journal

基　　金：国家重点基础研究项目 (No G2 0 0 0 0 2 63 0 1)~~

摘　　要：用数值模拟的方法将湍流流动的传热分为传热层流底层和湍流层 ,来考察传热层流底层中温度梯度矢量与速度夹角对湍流流动换热的影响 。A numerical investigation of a 2D flow passage of which the whole domain is subdivided into a viscosity-affected laminar layer and a fully-turbulent layer is presented. The calculated results indicate that the angles between temperature gradient and velocity in the laminar layer influences heat transfer in the whole turbulent layer. They can enhance heat transfer, reduce heat transfer coefficient, or have no effect on it. Enhanced heat transfer on the coarse wall is analyzed with the Field-Synergy theory while water is in fully-developed turbulent flow.

关 键 词：数值分析 湍流流动 场协同 换热 

分 类 号：TQ021.3[化学工程]