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首页> 外文期刊>Heat transfer >Heat transfer and irreversibility rate in MHD flow of a hybrid nanofluid with Newton boundary condition, slip flow, and nonlinear thermal radiation
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Heat transfer and irreversibility rate in MHD flow of a hybrid nanofluid with Newton boundary condition, slip flow, and nonlinear thermal radiation

机译：牛顿边界条件，滑动流动和非线性热辐射的杂交纳米流体的MHD流动传热和不可逆率

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摘要

The magnetohydrodynamic flow of a water-based Al_2O_3 - Cu hybrid nanoliquid through a vertical mi-crochannel has been investigated in the presence of collective effects, such as volume fraction of nanoparticle, suction/injection, magnetic field, temperature-dependent heat source, hydrodynamic slip, and convective boundary conditions. The current mathematical formulations have been worked out numerically by using the fourth- and fifth-order Runge-Kutta-Fehlberg scheme. The physical aspects of variation in velocity, temperature, entropy generation, and Bejan number with considered governing parameters have been discussed via corresponding graphs. The obtained numerical results demonstrated that radiation parameter and nanoparticle volume fraction reduce the thermal energy of the hybrid nanofluid. Moreover, entropy generation diminishes with the Hart-mann number and permeability parameter, whereas it enhances with the Grashof number and Biot number.
机译：通过垂直Mi-Crochannel进行水基Al_2O_3 - Cu杂化纳米型磁性动力学流动在集体作用的存在下，例如纳米粒子的体积分数，吸入/注射，磁场，温度依赖性热源，流体动力学 滑动和对流边界条件。 目前的数学制剂通过使用第四和第五阶跑为-Kutta-Fehlberg方案来数量地计算。 已经通过相应的图表讨论了速度，温度，熵生成和BEJAN编号的变化的物理方面已经通过相应的图表讨论。 所得数值结果表明，辐射参数和纳米颗粒体积分数降低了杂交纳米流体的热能。 此外，熵生成与HART-MANN号和渗透性参数减少，而它会随着GRASHOF编号和BIOT数而增强。

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