陕西科技大学学报2018，Vol.36Issue(4)：135-140,6.
平直翅片流道流动传热的数值模拟和结构优化
Numerical simulation and structural optimization of flow and heat transfer in plane fin
张勇 1侯雨田1
作者信息
- 1. 陕西科技大学机电工程学院,陕西西安 710021
- 折叠
摘要
Abstract
In this paper,the CFD method is used to establish the numerical model of plain fins,and the calculated results are compared with the relevant experimental data to verify the accuracy of the model.A new structure of cross-spoiler and cross-pins was presented.The new structure enhances the disturbance of the fluid in the flow channel and periodically hin-ders the development of the boundary layer,so that the temperature in the center of the fluid increases obviously,the heat transfer was enhanced.Compared with plain fins,the new struc-tural fins have higher j-factor and f-factor,but also higher pressure drop.T he relationship between the j,f factor and reynolds number is obtained by fitting the experimental data.The correlation has a certain accuracy in predicting the heat transfer performance of the new structure in the low Reynolds number range.关键词
板翅式换热器/数值模拟/强化传热Key words
plate-fin heat exchanger/numerical simulation/heat transfer enhancement分类
能源科技引用本文复制引用
张勇,侯雨田..平直翅片流道流动传热的数值模拟和结构优化[J].陕西科技大学学报,2018,36(4):135-140,6.
