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首页> 外文期刊>Nanotechnology, IEEE Transactions on >Two-Phase Simulation of Nanofluid Flow and Heat Transfer in an Annulus in the Presence of an Axial Magnetic Field
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Two-Phase Simulation of Nanofluid Flow and Heat Transfer in an Annulus in the Presence of an Axial Magnetic Field

机译：在轴向磁场作用下环空中纳米流体流动和传热的两相模拟

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摘要

In this study, the effects of magnetic field on nanofluid flow, heat, and mass transfer between two horizontal coaxial cylinders are studied using a two-phase model. The effect of viscous dissipation is also taken into account. By using the appropriate transformation for the velocity, temperature, and concentration, the basic equations governing the flow, heat, and mass transfer are reduced to a set of ordinary differential equations. These equations subject to the associated boundary conditions are solved numerically using the fourth-order Runge–Kutta method. The effects of Hartmann number, Reynolds number, Schmidt number, Brownian parameter, thermophoresis parameter, Eckert number, and aspect ratio on flow, heat, and mass transfer are examined. Results show that the Nusselt number has a direct relationship with the aspect ratio and Hartmann number but it has a reverse relationship with the Reynolds number, Schmidt number, Brownian parameter, thermophoresis parameter, and Eckert number.
机译：在这项研究中，使用两相模型研究了磁场对两个水平同轴圆柱体之间的纳米流体流动，热量和质量传递的影响。还考虑了粘性耗散的影响。通过对速度，温度和浓度使用适当的变换，控制流量，热量和质量传递的基本方程式可简化为一组常微分方程式。这些方程受相关边界条件的约束，使用四阶Runge–Kutta方法进行数值求解。检查了哈特曼数，雷诺数，施密特数，布朗参数，热泳参数，埃克特数和长宽比对流动，传热和传质的影响。结果表明，Nusselt数与长宽比和Hartmann数具有直接关系，而与Reynolds数，Schmidt数，Brownian参数，热泳参数和Eckert数则具有相反的关系。

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