An Experimental Investigation of Heat Transfer Enhancement by Pulsating Laminar Flow in a Triangular Grooved Channel

被引：1
|
作者：
Yang, Bingchang [1 ]
Jin, Dongxu [1 ]
机构：
[1] Dalian Univ Technol, Sch Energy & Power Engn, Dalian, Peoples R China
来源：
ELECTRICAL POWER & ENERGY SYSTEMS, PTS 1 AND 2 | 2012年 / 516-517卷
关键词：
Pulating flow; Heat transfer enhancement; Triangular grooved channel; Experimental investigation;
D O I：
10.4028/www.scientific.net/AMR.516-517.249
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
Heat transfer enhancement by pulsating flow in a triangular grooved channel has been experimentally investigated. Effects of Reynolds number Re, Strouhal number St, pulsation amplitude A on the heat transfer enhancement were studied. The experimental results show that, the pulsating flow can significantly enhance heat transfer compared to the steady flow case, for instance, an enhancement of 115% is achieved at Re=400, A=0.5 and St=0.3. There exists an optimal Strouhal number corresponding to the maximum heat transfer enhancement factor. The heat transfer enhancement factor increases with the increase of Reynolds number and pulsation amplitude.
引用
收藏
页码：249 / 252
页数：4
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