Marangoni forced convective MHD flow of second grade liquid is scrutinized. Heat source/sink, Joule heating and dissipation are addressed in energy equation. Physical aspects of entropy optimization with binary chemical reaction are addressed. Energy and entropy expressions are computed. Marangoni convection influenced on the surface pressure difference is calculated through temperature gradient, magnetic field and concentration gradient. Nonlinear PDE’s are reduced to ordinary one through suitable variables. Nonlinear system is computed for convergent solution by employing of OHAM. Characteristics of different influential parameters on entropy generation, concentration, temperature, Bejan number and velocity are graphically deliberated. Velocity enhances via Marangoni ratio parameter. Velocity and temperature have reverse effects for higher approximation of magnetic variable. For higher second grade fluid parameter the velocity is augmented. An increment occurs in temperature a...

中文翻译：

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二级流体在Marangoni强制对流中的不可逆性分析

检查二级液体的Marangoni强制对流MHD流量。热源/散热器，焦耳加热和耗散在能量方程中解决。解决了用二元化学反应进行熵优化的物理方面。计算能量和熵表达式。通过温度梯度，磁场和浓度梯度来计算影响表面压差的Marangoni对流。非线性PDE通过适当的变量减少为普通的PDE。利用OHAM计算非线性系统的收敛解。图形地研究了影响熵，浓度，温度，Bejan数和速度的不同影响参数的特征。通过Marangoni比率参数提高速度。速度和温度对磁变量的更高近似具有相反的影响。对于更高的二级流体参数，速度会增加。温度升高...