一种错列布孔型百叶窗翅片换热器的数值模拟  

Numerical simulation of staggered finned heat exchanger with perforated louvers

作　　者：曹侃 袁耀华 王春艳 苏之勇 李小民[1] Cao Kan;Yuan Yaohua;Wang Chunyan;Su Zhiyong;Li Xiaomin(School of Energy&Environment,Zhongyuan University of Technology,Zhengzhou 450007,China)

机构地区：[1]中原工学院能源与环境学院,郑州450007

出　　处：《低温与超导》2021年第11期41-46,51,共7页Cryogenics and Superconductivity

基　　金：国家自然科学基金项目(21776263)资助。

摘　　要：提出一种错列布孔型百叶窗翅片结构,通过CFD方法对其进行模拟计算,得到翅片的换热因子及阻力因子随雷诺数的变化规律,且通过试验和经验公式的方式分别进行了验证。将其与传统百叶窗结构的性能进行比较,结果发现:这种错列布孔结构的翅片在雷诺数150~400时,换热因子较传统百叶窗翅片提高了10%~24%,阻力因子提高了1%~2%,换热器的综合性能提高了9%~23%,错列布孔型百叶窗结构的综合性能优于传统百叶窗结构。计算结果为进一步研究高效百叶窗翅片换热器提供了参考依据。A louver fin structure with staggered hole-siting was proposed,which was simulated by CFD method,and the variation laws of heat transfer factor and resistance factor with Reynolds number were obtained,which were verified by experiments and empirical formulas respectively.It was compared with the performance of traditional louver structure.The results show that when Reynolds number is 150 to 400,the heat transfer factor and resistance factor of the fin with staggered holes are increased by 10%to 24%and 1%to 2%,respectively,but the comprehensive performance of the heat exchanger is improved by 9%to 23%.The comprehensive performance of staggered louver structure is better than that of traditional louver structure.The results can provide a reference for further study of efficient staggered fin heat exchanger.

关 键 词：百叶窗翅片 错列布孔 传热性能 流阻性能 数值模拟 

分 类 号：TK124[动力工程及工程热物理—工程热物理]