A numerical simulation is presented to investigate the effect of an exponentially varying magnetic field on three dimensional flow of Zinc Oxide-Society of Automotive Engineers 50 nanolubricant (ZnO-SAE50nano-lubricant) past a stretching sheet. Subsequently the impact of homogenous and heterogeneous reactions on the flow of nanolubricant concerned has also taken into account. The study has been strengthened by introducing the convection mechanism and the effect of thermal radiation. Similarity transformations are employed to transform the set of partial governing equations into the set of ordinary differential equations. The suitable boundary conditions are used to obtain the numerical solution. The numerical results are simulated using Matlab bvp4c solver and validated with the existing results. The flow characteristics, thermal characteristics, nanoparticle concentration and some non-dimensional numbers are computed under the influence of the pertinent parameters. The valuable outcome of the current study is that augmented magnetic field strength is the root cause of diminishing axial as well as transverse velocities and growing trend of fluid temperature. Also, the coefficients of homogenous and heterogeneous reactions are boons for ascending concentration boundary layer.

提出了数值模拟，以研究指数变化的磁场对氧化锌三维流动的影响-汽车工程师50纳米润滑剂（ZnO-SAE50纳米润滑剂）经过拉伸片之后。随后，还考虑了均相和异相反应对有关纳米润滑剂流动的影响。通过介绍对流机理和热辐射效应加强了研究。采用相似变换将部分控制方程组转换为常微分方程组。合适的边界条件用于获得数值解。使用Matlab bvp4c求解器对数值结果进行了仿真，并用现有结果进行了验证。流动特性，热特性 在相关参数的影响下计算出纳米粒子的浓度和一些无量纲数。当前研究的有价值的结果是，增强的磁场强度是轴向和横向速度降低以及流体温度上升趋势的根本原因。同样，均相和异相反应的系数对于浓度边界层的增加是有益的。