Heat (mass) transfer and friction loss in two-pass ducts with various parallel rib arrangements

被引：5
|
作者：
Kim, Kyung Min [1 ]
Lee, Sei Young [2 ]
Lee, Dong Hyun [1 ]
Cho, Hyung Hee [1 ]
机构：
[1] Yonsei Univ, Dept Mech Engn, Seoul 120749, South Korea
[2] Univ Texas Austin, Dept Mech Engn, Austin, TX 78712 USA
来源：
HEAT AND MASS TRANSFER | 2009年 / 45卷 / 06期
关键词：
HEAT/MASS TRANSFER PHENOMENA; ROTATING PASSAGE; PRESSURE-DROP; CHANNELS; FLOW;
D O I：
10.1007/s00231-008-0469-2
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
The present study investigated the effects of four parallel rib arrangements on heat/mass transfer and pressure drop characteristics in rotating two-pass ducts. The experiments of mass transfer and pressure measurement are performed to obtain heat transfer distributions and friction losses. The highest averaged heat (mass) transfer and friction loss in each region appeared in the turning region in the stationary cases, but appeared in the upstream region of the second pass in the rotating cases. Among the tested rib arrangements, the averaged heat (mass) transfer and the friction factor in the second pass in the stationary ducts were high in the cases with the NN- and PP-type ribs; however, in the rotating ducts, they were high in the cases with the NN- and PN-type ribs. The thermal performance in the four different rib arrangements was almost the same.
引用
收藏
页码：783 / 792
页数：10
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