摘要
本文对大流动截面、低流动速度工况下,阵列射流对于多个三维加热模块的换热特性进行物理实验与数值模拟研究。验证了在此工况下其强化换热的有效性,通过不同位置模块平均Nu数的大小推得表面平均速度,证明了多孔结构的均流作用对于换热的强化起着重要作用。实验与数值模拟都很好地证明了这一点。本文对多孔结构的几何参数与阻力、换热特性进行了相关研究。
This article aims for characteristics for jet array impingement under low velocity and large flow area. The numerical computation and experimental investigation proves the heat transfer efficiency under this situation. The average velocity on the surface from the block＇s average Nu number in different location was concluded. Both computation and experiment testify this conclusion perfectly. Some research on the relation among outline, pressure resistance and heat transfer characteristics were also carried in this paper.
出处
《建筑热能通风空调》
2008年第5期11-15,共5页
Building Energy & Environment
关键词
阵列射流
孔板
强化换热
jet array impingement
orifice plate
reinforced heat transfer
