The primary target of present research is to examine the application of OHAM (optimal homotopy asymptotic method) for a nanofluid transport through Darcy Forchheimer space toward the stagnation region by comparing stretching and straining forces. The porous matrix is suspended with nanofluid, and the flow field is under inconsistent heat source/sink influence. The solutions of guiding boundary layer equations report that pattern of primary velocity profiles are inverted by stagnation region flow strength. Straightforward relation of Forchheimer number with heat transfer has also been observed when stagnation forces dominate stretching forces. The novelty of present article lies in vector form presentation to OHAM and in the comparative analysis of stretching and straining forces.

本研究的主要目标是通过比较拉伸力和应变力，研究OHAM（最优同伦渐近方法）在纳米流体通过Darcy Forchheimer空间向停滞区的迁移中的应用。多孔基体被纳米流体悬浮，并且流场受到不一致的热源/吸收器影响。指导边界层方程的解决方案报告说，初速速度分布图的模式被停滞区域流动强度反转了。当停滞力主导拉伸力时，也观察到了Forchheimer数与热传递的直接关系。本文的新颖之处在于向OHAM的矢量形式展示以及对拉伸力和拉力的比较分析。