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Thermal radiation and slip effects on magnetohydrodynamic (MHD) stagnation point flow of Casson fluid over a convective stretching sheet
Propulsion and Power Research ( IF 5.3 ) Pub Date : 2019-02-08 , DOI: 10.1016/j.jppr.2019.01.004
Jawad Raza

Current study examines the combined effect of thermal radiation and velocity slip along a convective heated stretching sheet. magnetohydrodynamic (MHD) effect near the stagnation point is also under consideration. The main structure of partial differential equations attained in the form of momentum, energy and concentration equations. For a self-similar solution, the system of governing PDEs assimilated into the set of nonlinear ordinary differential equations by applying suitable similarity transformation. Resulting nonlinear ODEs are successfully solved via Runge-Kutta-Fehlberg method. All obtained unknown functions are discussed in detail after plotting the numerical results against different arising physical parameters. The validations of numerical results have been taken into account with two different numerical approaches and it is found to be in excellent agreement with the numerical results. The study reveals that concentration boundary layer thickness decreases by increasing the values of Schmidt number and increases by increasing the chemical reaction parameter.



中文翻译:

热辐射和滑动对卡森流体在对流拉伸板上的磁流体动力学(MHD)驻点流的影响

当前的研究研究了沿对流加热拉伸片的热辐射和速度滑移的综合作用。停滞点附近的磁流体动力学(MHD)效应也在考虑之中。偏微分方程的主要结构以动量,能量和浓度方程的形式获得。对于自相似解,通过应用适当的相似变换将控制PDE的系统同化为一组非线性常微分方程。通过Runge-Kutta-Fehlberg方法成功解决了所得的非线性ODE。在针对不同的物理参数绘制数值结果后,将详细讨论所有获得的未知函数。已经用两种不同的数值方法考虑了数值结果的验证,并且发现与数值结果非常吻合。研究表明,浓度边界层厚度随施密特数的增加而减小,而随化学反应参数的增加而增大。

更新日期:2019-02-08
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