In this study, an attempt has been made to investigate the mass and heat transfer effects in a BLF through a porous medium of an electrically conducting viscoelastic fluid subject to a transverse magnetic field in the existence of an external electric field, heat source/sink, and chemical reaction. It has been considered the effects of the electric field, viscous and Joule dissipations, radiation, and internal heat generation/absorption. Closed-form solutions for the boundary layer equations of viscoelastic, second-grade, and Walters’ fluid models are considered. The method of the solution includes similarity transformation. The converted equations of thermal and mass transport are calculated using the optimal homotopy asymptotic method (OHAM). The solutions of the temperature field for both prescribed surface temperature (PST) and prescribed surface heat flux (PHF) are found. It is vital to remark that the interaction of the magnetic field is found to be counterproductive in enhancing velocity and concentration distribution, whereas the presence of chemical reaction, as well as a porous matrix with moderate values of the magnetic parameter, reduces the temperature and concentration fields at all points of the flow domain.

中文翻译：

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多孔介质在拉伸板上流动的MHD非牛顿流体电的解析处理

在这项研究中，已尝试研究在存在外部电场，热源/散热片的情况下，通过横向磁场作用的导电粘弹性流体的多孔介质在BLF中的质量和热传递效应。和化学反应。已经考虑到电场，粘性和焦耳耗散，辐射以及内部热量产生/吸收的影响。粘弹性，二级和Walters边界层方程的封闭形式解考虑流体模型。该解决方案的方法包括相似度转换。使用最佳同伦渐近方法（OHAM）计算转换后的传热和传质方程。找到规定表面温度（PST）和规定表面热通量（PHF）的温度场解。至关重要的一点是，发现磁场的相互作用在提高速度和浓度分布方面起相反的作用，而化学反应的存在以及具有中等磁性参数值的多孔基质会降低温度和浓度流域所有点上的字段。