Purpose

The purpose of this paper is to study the effects of thermal radiation and homogeneous-heterogeneous reactions in the three-dimensional hybrid nanofluid flow past a permeable stretching/shrinking sheet.

Design/methodology/approach

The combination of aluminum oxide (Al₂O₃) and copper (Cu) nanoparticles with total volumetric concentration is numerically analyzed using the existing correlations of hybrid nanofluid. With the consideration that both homogeneous and heterogeneous reactions are isothermal while the diffusion coefficients of both autocatalyst and reactant are same, the governing model is simplified into a set of differential (similarity) equations.

Findings

Using the bvp4c solver, dual solutions are presented, and the stability analysis certifies the physical/real solution. The findings show that the suction parameter is requisite to induce the steady solution for shrinking parameter. Besides, the fluid concentration owing to the shrinking sheet is diminished with the addition of surface reaction.

Originality/value

The present findings are novel and can be a reference point to other researchers to further analyze the heat transfer performance and stability of the working fluids.

中文翻译：

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辐射混合纳米流体的三维流动通过具有均相-非均相反应的可渗透拉伸/收缩片

目的

本文的目的是研究热辐射和均相-非均相反应在通过可渗透拉伸/收缩片的三维混合纳米流体流动中的影响。

设计/方法/方法

使用混合纳米流体的现有相关性对具有总体积浓度的氧化铝 (Al ₂ O ₃ ) 和铜 (Cu) 纳米粒子的组合进行数值分析。考虑到均相和非均相反应都是等温的，而自催化剂和反应物的扩散系数相同，将控制模型简化为一组微分（相似）方程。

发现

使用 bvp4c 求解器，给出对偶解，稳定性分析证明物理/真实解。研究结果表明，吸力参数是引起收缩参数稳定解的必要条件。此外，随着表面反应的增加，由于收缩片而导致的流体浓度降低。

原创性/价值

目前的发现是新颖的，可以为其他研究人员进一步分析工作流体的传热性能和稳定性提供参考。