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首页> 外文期刊>European Journal of Mechanics, B. Fluids >Flow of nanofluid plane wall jet and heat transfer
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Flow of nanofluid plane wall jet and heat transfer

机译：纳米流体平面壁面射流和传热

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The traditional laminar plane wall jet is studied when the medium is filled with nanoparticles of Ag, Cu, CuO, Al2O3 and TiO2. It is aimed to understand the effects of several nanofluids on the heat and flow behaviors of the wall jet. Momentum and thermal integral flux relations are obtained initially. Later on, some important shape factors are defined designing the momentum boundary layer, shear layer as well as the thermal boundary layer when the wall is subjected to either adiabatic or isothermal wall constraints. By means of these parameters, the flow field is shown to be decelerated and as a consequence the shear stress on the wall is enhanced. Without solving the energy equation, the thermal layer shape factor enables one to fully seize the cooling effect of considered nanofluids for both adiabatic and isothermal wall cases. As a result, the heat transfer rate is found to be greatly enhanced by the presence of nanoparticles. Same conclusions are reached by two different popular nanofluid models made use in the recent nanofluid researches. (C) 2016 Elsevier Masson SAS. All rights reserved.
机译：当介质中填充有Ag，Cu，CuO，Al2O3和TiO2的纳米粒子时，研究了传统的层状平面壁射流。目的是了解几种纳米流体对壁射流的热和流动行为的影响。最初获得动量和热积分通量关系。后来，定义了一些重要的形状因素，以设计壁受到绝热或等温壁约束时的动量边界层，剪切层以及热边界层。借助于这些参数，显示出流场被减速，结果，壁上的剪切应力得以增强。在不求解能量方程的情况下，热层形状因数使得人们可以充分利用考虑到的纳米流体在绝热和等温壁情况下的冷却效果。结果，发现通过纳米颗粒的存在，传热速率大大提高。在最近的纳米流体研究中使用的两种不同的流行纳米流体模型也得出了相同的结论。 （C）2016 Elsevier Masson SAS。版权所有。

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