NUMERICAL STUDY OF FLUID FLOW AND HEAT TRANSFER IN A PERFORATED BAFFLE CHANNEL

摘要：

The fluid flow and heat transfer features for a rectangular channel with the staggered perforated baffles which holes are arranged in stagger and parallel way have been studied numerically when Re number was changed from 1000 to 15000. The numerical results show that Nu number for the stagger-hole baffle in the same rectangular channel is 1.3 times more than that of the solid baffle channel, and is also higher than the parallel-hole baffle. A new parameter r is defined, which is equal to the hole area to baffle total. It was found that the higher the r is, the larger the improvement of the Nu number will be. On the basis of the calculation, friction factor of stagger-hole baffle channel may be greater or less than that of parallel-hole baffle channel depending on r.

关键词： heat transfer rectangular channel perforated baffle

作者: Fan Xiaowei Wang Yuemei Yang Ruiliang Zheng Huifan

作者单位: Zhongyuan University of Technology Zhengzhou, 450007,China

会议类型: 国际会议

会议名称: The 22nd International Congress of Refrigeration(第22届国际制冷大会)

会议地点: 北京

会议语种:英文

在线出版日期: 2007-08-21（万方平台首次上网日期，不代表论文的发表时间）