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Effect of non-Newtonian flow due to thermally-dependent properties over an inclined surface in the presence of chemical reaction, Brownian motion and thermophoresis
Alexandria Engineering Journal ( IF 6.2 ) Pub Date : 2021-04-27 , DOI: 10.1016/j.aej.2021.03.014
Shahzad Ahmad , Anique Ahmad , Kashif Ali , Hina Bashir , Muhammad Farooq Iqbal

The aim of present study is to investigate the convective heat and mass transfer in steady MHD boundary layer flow of an electrically conducting micropolar fluid over an inclined surface. Partial differential equations resulting from the mathematical modeling of the phenomenon are reduce to nonlinear ODEs, and a finite difference based scheme has been adopted to iteratively find the numerical solution by employing the successive over-relaxation (SOR) method. A self-developed computer code has been used in the MATLAB environment. Influence of chemical reaction, Brownian motion, thermophoresis, and viscous dissipation on the relevant features of the flow are discussed and analyzed through graphs and tables. Temperature dependent thermal conductivity and viscosity enhances the flow velocity. Wall suction slows down the flow in the boundary layer and brings the optimum value of the velocity very nearer to the inclined plane. The magnetic field affects the shear stress and viscous dissipation that is parallel due to suction. A decrease in the fluid temperature is noticed throughout the boundary layer for Prandtl number, Schmidt number, and suction parameter whereas an opposite trend is seen for temperature-dependent thermal conductivity, injection parameter, magnetic field, Brownian motion, and thermophoresis.



中文翻译:

在化学反应,布朗运动和热泳的存在下,非牛顿流的影响是由于倾斜表面上的热依赖性所致

本研究的目的是研究在倾斜表面上的导电微极性流体在稳定的MHD边界层流中的对流传热和传质。由该现象的数学建模得到的偏微分方程被简化为非线性ODE,并且采用了基于有限差分的方案,通过采用逐次过松弛(SOR)方法来迭代地找到数值解。自行开发的计算机代码已在MATLAB环境中使用。通过图形和表格讨论并分析了化学反应,布朗运动,热泳和粘性耗散对流动相关特征的影响。温度相关的热导率和粘度提高了流速。壁面吸力减慢了边界层中的流动,并使速度的最佳值非常接近斜面。磁场会影响剪切应力和由于吸力而平行的粘性耗散。整个边界层的Prandtl数,Schmidt数和吸力参数的流体温度均下降,而与温度相关的导热率,注入参数,磁场,布朗运动和热泳则呈现相反的趋势。

更新日期:2021-04-27
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