摘要
This exploration examines unsteady magnetohydrodynamic(MHD) three-dimensional flow of viscous material between rotating plates subject to radiation,Joule heating and chemical reaction.The non-linear partial differential system is re-structured into the ordinary differential expressions by the implication of appropriate transformations.The developed differential equations are computed by homotopy analysis technique.Numerical consequences have been accomplished by various values of emerging parameters.Coefficients of skin friction and heat and mass transfer rates have been scrutinized.Irreversibility analysis is carried out.Influence of various prominent variables on entropy generation is presented.Moreover,the temperature increases for higher Dufour number and concentration distribution reduces against Soret number.Higher squeezing parameter enhances velocity while concentration reduces with an increment in squeezing parameter.Both entropy rate and Bejan number increase against higher diffusion parameter.
本研究探讨了受辐射、焦耳热和化学反应影响的黏性材料在旋转板之间的非定常三维磁流体流动。通过适当变换,将非线性偏微分系统重新构造为常微分方程。利用同伦分析技术计算了所建立的微分方程,研究了各重要参数值对结果的影响,详细分析了表面摩擦因数和热传质率的影响,并进行了不可逆性分析。同时研究了各种重要变量对熵产的影响。结果表明,Dufour数越高,温度越高,Soret数越低,浓度分布越低。挤压参数越大,速度越快,浓度越小。随着扩散参数的增大,熵增率和Bejan数均增大。
