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首页> 外文会议>ICEEP 2012 >An Experimental Investigation of Heat Transfer Enhancement by Pulsating Laminar Flow in a Triangular Grooved Channel
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An Experimental Investigation of Heat Transfer Enhancement by Pulsating Laminar Flow in a Triangular Grooved Channel

机译：三角形沟道通道脉动层流动传热增强的实验研究

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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.
机译：通过实验研究了三角形沟槽通道中的脉动流动的热传递增强。研究了Reynolds Numb Re，Strouhal Number ST，脉动幅度A对传热增强的影响。实验结果表明，与稳定流动情况相比，脉动流动可以显着增强传热，例如，在RE = 400，A = 0.5和ST = 0.3处实现115％的增强。存在与最大传热增强因子相对应的最佳稳定数字。随着雷诺数和脉动幅度的增加，传热增强因子增加。

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