摘要
为了研究变角度百叶窗翅片式平行流气冷器的换热性能,对文中新提出的两种变角度百叶窗结构和现研究较多的两种变角度百叶窗结构与一种均匀角度百叶窗结构,建立三维模型;对五种模型的速度场、温度场和压力场进行分析;并对五种结构在不同Re数时进行综合性能评价。结果表明,四种变角度百叶窗翅片的综合性能均优于均匀角度的百叶窗翅片综合性能,且文中提出的一种变角度百叶窗翅片结构目前综合性能最好。
In order to study the performance of variable angle louver fins in parallel flow,two new variable angle louver fins structures were presented and two common variants angle louver fins structure and one uniform angle louver fin structure were proposed,three- dimensional model was established. The velocity fields,temperature fields and pressure fields of the five models were analyzed,and the comprehensive performance of five structures were evaluated in some certain Re number range. It shows that the comprehensive performance of variable angle louver fins are better than uniform angle louver fin,particularly,one variable angle louver fin proposed by author.
出处
《低温与超导》
CAS
北大核心
2015年第6期84-88,共5页
Cryogenics and Superconductivity
基金
国家自然科学基金(51376163)
关键词
百叶窗翅片
数值模拟
综合能效因子
Supercritical CO2
Numerical simulation
Comprehensive energy efficiency factor
