百叶窗翅片霜层生长数值模拟  

Numerical simulation of frost layer growth of louver fin

作　　者：尚泽栋 王洪利 Shang Zedong;Wang Hongli(Colege of Metalurgy and Energy,North China University of Science and Technology,Tangshan O63210,China)

机构地区：[1]华北理工大学冶金与能源学院,唐山063210

出　　处：《低温与超导》2022年第9期59-64,共6页Cryogenics and Superconductivity

基　　金：国家自然科学基金(51774143);河北省自然科学基金(E2020209121);唐山市科技创新团队培养计划项目(21130207D)资助。

摘　　要：以百叶窗翅片为研究对象,利用欧拉两相流和相间传热传质理论建立了霜层生长数学模型,并对百叶窗翅片表面霜层生长分布情况进行了研究。结果表明,翅片前侧区域结霜量比翅片后侧区域结霜量多18.2%,而翅片前沿和翅片后沿的总结霜量为翅片前侧区域结霜量的70.5%,且翅片前沿与翅片后沿的结霜量大致相同。此外,翅片根部温度对结霜量和湿空气含湿量影响最大,翅片迎面风速对其影响较小。计算结果为百叶窗翅片结霜特性研究提供参考。With louver fins as the research object, a mathematical model for frost layer growth was established based on Euler two-phase flow and heat and mass transfer theory between phases, and the frost layer growth and distribution on the surface of louver fins were studied. The results show that the frost amount in the front area of the fin is 18.2% more than that in the rear area of the fin, while the total frost amount in the front and rear area of the fin is 70.5% and the frost amount in the front area is roughly the same as that in the rear area of the fin. In addition, the temperature of the fin root has the greatest influence on frosting and humidity ratio, while the wind speed of fin has little effect. The calculation results can provide a reference for the frosting characteristics of louver fin.

关 键 词：百叶窗翅片 结霜 数值模拟 两相流 

分 类 号：TB657[一般工业技术—制冷工程]