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On the analytic solution of MHD flow and heat transfer for two types of viscoelastic fluid over a stretching sheet with energy dissipation, internal heat source and thermal radiation

机译:关于带能量耗散,内部热源和热辐射的拉伸片上两种粘弹性流体的MHD流动和传热的解析解

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In this paper we study the magneto-hydrodynamic flow and heat transfer of an electrically conducting, viscoelastic fluid past a stretching surface, taking into account the effects of Joule and viscous dissipation, internal heat generation/absorption, work done due to deformation and thermal radiation. Closed-form solutions for the boundary layer equations of the flow are presented for two classes of viscoelastic fluid, namely, the second-grade and Walters' liquid B fluids. Thermal transport is analyzed for two types of non-isothermal boundary conditions, i.e. prescribed surface temperature (PST) and prescribed surface heat flux (PHF) varying as a power of the distance from the origin. Results for some special cases of the present analysis are in excellent agreement with the existing literature. The effects of various physical parameters, such as viscoelasticity, magnetic parameter, thermal radiation parameter, heat source/sink parameter, Prandtl number, Eckert number and suction/injection parameter on the velocity and temperature profiles, skin friction coefficient and Nusselt number are examined and discussed in detail.
机译:在本文中,我们考虑了焦耳和粘性耗散,内部热量产生/吸收,由于变形和热辐射而完成的工作的影响,研究了导电,粘弹性流体经过拉伸表面后的磁流体动力流动和热传递。 。针对两类粘弹性流体,即第二级和沃尔特斯B流体,给出了流动边界层方程的闭式解。分析两种非等温边界条件的热传递,即规定的表面温度(PST)和规定的表面热通量(PHF)作为距原点的距离的幂而变化。本分析中某些特殊情况的结果与现有文献非常吻合。检验了各种物理参数,如粘弹性,磁参数,热辐射参数,热源/散热器参数,普朗特数,埃克特数和吸/吸参数对速度和温度分布,皮肤摩擦系数和努塞尔数的影响,并详细讨论。

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