Hydrodynamic and thermal transport characteristics of swirling flows through microchannels with interfacial slip

P. Kaushik; Sukumar Pati; S.K. Som; Suman Chakraborty

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Hydrodynamic and thermal transport characteristics of swirling flows through microchannels with interfacial slip

机译：旋流流经带界面滑移的微通道的水动力和热传输特征

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Fluid flow and heat transfer characteristics of decaying laminar swirling flow of liquids in microchannels have been theoretically investigated, with the consideration of interfacial slip. The effects of slip-swirl interactions on friction factor and Nusselt number have been investigated. The effect of swirl is found to increase the friction factor, while the velocity slip tends to decrease the same, and the combined effect could either result in an increase or a decrease in the friction factor as compared to that in case of flow without slip and without swirl depending upon the situation. It has been recognized that, for a given slip length, there is a threshold inlet swirl number S_o above which the average friction factor over the entrance length (f_ss) is higher than that in case of flow with no slip and no swirl (f), while, below the threshold swirl number S_o,f_(ss)

机译：考虑界面滑移，从理论上研究了微通道中层流回旋流的衰减和流动特性。研究了滑流-旋流相互作用对摩擦系数和Nusselt数的影响。发现旋流的影响增加了摩擦系数，而速度滑移趋于减小，并且与没有滑流的情况相比，综合作用可能导致摩擦系数增加或减小。视情况而定。已经认识到，对于给定的滑移长度，存在阈值入口涡流数S_o，高于该阈值时，入口长度上的平均摩擦因数（f_ss）高于没有滑移和无涡流的情况下的平均摩擦系数（f），而低于阈值涡流数S_o，f_（ss）

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来源
《International Journal of Heat and Mass Transfer》 |2012年第16期|p.4359-4365|共7页
作者
P. Kaushik; Sukumar Pati; S.K. Som; Suman Chakraborty;
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作者单位

Department of Mechanical Engineering. Indian Institute of Technology, Kharagpur 721302, India;

Department of Mechanical Engineering. Indian Institute of Technology, Kharagpur 721302, India;

Department of Mechanical Engineering. Indian Institute of Technology, Kharagpur 721302, India;

Department of Mechanical Engineering. Indian Institute of Technology, Kharagpur 721302, India;

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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);
原文格式 PDF
正文语种 eng
中图分类
关键词
friction factor; heat transfer; nusselt number; slip; swirling flow;

机译：摩擦系数传播热量;努塞尔数滑;旋流;

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Hydrodynamic and thermal transport characteristics of swirling flows through microchannels with interfacial slip

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