Influence of magnetic field for metachoronical beating of cilia for nanofluid with Newtonian heating
Influence of magnetic field for metachoronical beating of cilia for nanofluid with Newtonian heating
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DOI：
10.1016/j.jmmm.2014.12.086
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发表时间：
2015-05-01
影响因子：
2.7
通讯作者：
Khan, Z. H.
中科院分区：
文献类型：
--
作者：
Akbar, Noreen Sher;Khan, Z. H.
研究了磁场对非对称通道中牛顿加热纳米流体纤毛异拍角运动的影响。在长波长和低雷诺数近似下，建立了控制耦合方程。通道壁面间的牛顿加热受无量纲共轭参数控制。针对纳米颗粒分数、传热、流函数和压力梯度评估了数值解。在这项研究中的重要发现是牛顿加热γ，哈特曼数M，热泳参数N-t和布朗运动参数N-b的压力上升，纳米粒子分数，传热现象，压力梯度和流线的共轭参数的变化。在通道壁附近，由于M的增加，速度场增加，而在通道中心，速度场减小。(C)2015 Elsevier B. V.版权所有。
Influence of magnetic Field for metachoronical beating of cilia for nanofluid with Newtonian heating in an asymmetric channel is considered. The governing coupled equations are constructed under long wavelength and low Reynold's number approximation. The Newtonian heating is controlled by a dimensionless conjugate parameter, which varies between walls of channel. Numerical solutions are evaluated for nanoparticle fraction, heat transfer, stream function and pressure gradient. The important findings in this study are the variation of the conjugate parameter for Newtonian heating gamma, Hartmann number M, thermophoresis parameter N-t and Brownian motion parameter N-b on pressure rise, nanoparticle fraction, heat transfer phenomena, pressure gradient and streamlines. The velocity field increases due to increase in M near the channel walls while velocity field decreases at the centre of the channel. (C) 2015 Elsevier B.V. All rights reserved.