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NUMERICAL SIMULATION OF THREE-DIMENSIONAL FLOW OF RADIATING GRAY NANOFLUID THROUGH POROUS MEDIUM SUBJECTED TO VIBRATIONAL ROTATIONS AND SLIP AT LIQUID-SHEET INTERFACE
Journal of Porous Media ( IF 2.5 ) Pub Date : 2020-01-01 , DOI: 10.1615/jpormedia.2020024935
Rakesh Kumar , Sabir Ali Shehzad , M. N. Bashir

We present a numerical scheme based on explicit finite difference approximation to handle the three-dimensional boundary layer flow of absorbing, emitting, and electrically conducting grey nanofluid over a flat surface. Nanofluid is designed by suspending iron-oxide nanoparticles (IONPs) in the base fluid. The flow field is assumed to be embedded in the porous medium, which executes vibrational rotations. To maintain the flow, velocity slip is introduced at the liquid-sheet interface. The governing equations are reduced to nondimensional form using dimensionless parameters and variables. The stability and convergence criteria have also been discussed to elaborate the validity of results. The hydromagnetic and convective heat transfer characteristics of magnetite nanofluid have been exhibited through graphs and tables for different related parameters. Substantial influences of oscillations and rotations have been noticed on the velocity profiles, temperature profiles, skin-friction coefficients, and Nusselt number.

中文翻译:

液-质界面处旋转振动和滑动的多孔介质对灰色纳米流体的三维流场数值模拟

我们提出一种基于显式有限差分近似的数值方案,以处理在平面上吸收,发射和导电灰色纳米流体的三维边界层流。通过将氧化铁纳米粒子(IONP)悬浮在基础流体中来设计纳米流体。假定流场嵌入在执行振动旋转的多孔介质中。为了保持流动,在液-液界面处引入了速度滑移。使用无量纲的参数和变量将控制方程简化为无量纲形式。还讨论了稳定性和收敛标准,以详细说明结果的有效性。磁铁矿纳米流体的水磁和对流传热特性已经通过图表和表格展示了不同的相关参数。已经注意到振动和旋转对速度分布,温度分布,皮肤摩擦系数和努塞尔数的实质影响。
更新日期:2020-01-01
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