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Slip effects on the MHD flow of a generalized Oldroyd-B fluid in a porous medium

机译:滑移对多孔介质中广义Oldroyd-B流体MHD流动的影响

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This paper deals with the analytical solutions to a magnetohydrodynamic (MHD) flow of generalized Oldroyd-B fluid in a porous medium between two side walls perpendicular to the plate. Considering the 1st-order and the 2nd-order accurate slip boundary conditions, the flow inducing by a hyperbolic sine pressure gradient and a time-dependent accelerating plate. The fractional calculus approach is used to establish the constitutive relationship model of non-Newtonian fluid. Exact analytic solutions to the velocity and stress fields, are constructed by means of finite Fourier sine transform and Laplace transform. Finally, the influence of various parameters on velocity and shear stress has been shown and discussed through several 3D surfaces and 2D contour lines.
机译:本文研究了在垂直于板的两个侧壁之间的多孔介质中广义Oldroyd-B流体的磁流体动力学(MHD)流动的解析解。考虑一阶和二阶精确滑移边界条件,由双曲正弦压力梯度和时变加速板引起的流动。采用分数演算方法建立了非牛顿流体的本构关系模型。借助于有限傅里叶正弦变换和拉普拉斯变换构造了对速度场和应力场的精确解析解。最后,通过几个3D表面和2D等高线显示并讨论了各种参数对速度和切应力的影响。

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