Wavelets solution of MHD 3-D fluid flow in the presence of slip and thermal radiation effects

作者：Usman, M.; Zubair, T.; Hamid, M.; Ul Haq, Rizwan^*; Wang, Wei

来源：Physics of Fluids, 2018, 30(2): 023104.

DOI：10.1063/1.5016946

• BOUNDARY-LAYER EQUATIONS
• HEAT-TRANSFER
• STRETCHING SHEET
• PLATE
• SURFACE
• CHANNEL

This article is devoted to analyze the magnetic field, slip, and thermal radiations effects on generalized three-dimensional flow, heat, and mass transfer in a channel of lower stretching wall. We supposed two various lateral direction rates for the lower stretching surface of the wall while the upper wall of the channel is subjected to constant injection. Moreover, influence of thermal slip on the temperature profile beside the viscous dissipation and Joule heating is also taken into account. The governing set of partial differential equations of the heat transfer and flow are transformed to nonlinear set of ordinary differential equations (ODEs) by using the compatible similarity transformations. The obtained nonlinear ODE set tackled by means of a new wavelet algorithm. The outcomes obtained via modified Chebyshev wavelet method are compared with Runge-Kutta (order-4). The worthy comparison, error, and convergence analysis shows an excellent agreement. Additionally, the graphical representation for various physical parameters including the skin friction coefficient, velocity, the temperature gradient, and the temperature profiles are plotted and discussed. It is observed that for a fixed value of velocity slip parameter a suitable selection of stretching ratio parameter can be helpful in hastening the heat transfer rate and in reducing the viscous drag over the stretching sheet. Finally, the convergence analysis is performed which endorsing that this proposed method is well efficient.

• 出版日期2018-2
• 单位北京大学