摘要
本文对矩形通道内分别布置单排一对直角三角翼、矩形翼、梯形翼、斜截圆柱体、斜截椭圆柱体等涡流发生器强化传热的效果在层流和紊流范围内（Re=800～38000）进行了对比性实验,并比较了各自对压力损失的影响,指出斜截椭圆柱体涡流发生器是一种强化换热效果好阻力损失又低的新型涡流发生器。
The paper compares the heat tansfer enhancement of several vortex generators (VGs) such as triangular wings,rectangular wings, trapeze wings, angle-cut cylinder VG and angle-cut elliptical column VG, which are installed in rectangular tunnel. Both flow laminar and turbular flow are considered (Re ? 800 ~ 38000). The pressure loss caused by these vortex generators is also discussed. It is concluded that the bevel cut elliptical column is a new kind of VG which enhances heat transfer effectively and cause les...
出处
《工程热物理学报》
EI
CAS
CSCD
北大核心
2002年第S1期173-176,共4页
Journal of Engineering Thermophysics
基金
河北省自然科学基金资助项目(No.598043)
河北省科委博士基金资助项目
关键词
强化传热
涡流发生器
马蹄涡
端部涡
vortex generator
heat transfer enhancement
horseshoe vortex
tip vortex
