Hybrid nanofluids have generally been used to improve the applications heat transfer as a heat exchanger due to its significant thermos-physical properties compared to conventional fluid. In this article, 3D axis symmetric flow and heat dissipation over a hybrid nano fluid containing copper-alumina stays in the base liquid water are presented. This flow passes over the biaxial porous stretching/lowering sheet under the force of hot air and Cattaneo-Christov heat conduction, which is short for the (AMH–HNF–TCCHF) flow model. The partial differential equations of the proposed model are adjusted through a suitable similarity transformation that generates the ordinary differential system with physical variation. To analyse the physical variations, simulation of ODE systems is performed through a novel numerical technique named the “Modified New Iterative Method” (MNIM), which has been proved to be fast, convergent, and reliable. The results of physical variations in the stretching/shrinking parameter, mass flux, thermal radiation quantity, the thermal relaxation parameter and the Prandtl number in the velocity and energy field are shown in the graphs. This model emphasises the importance of study in potential medicinal fields, especially in 3D objects and cooling procedures in industries.

由于与传统流体相比具有显着的热物理特性，混合纳米流体通常被用于改善作为热交换器的应用传热。在本文中，介绍了含有铜-氧化铝的混合纳米流体在基础液态水中的 3D 轴对称流动和散热。该流动在热空气和 Cattaneo-Christov 热传导的作用下通过双轴多孔拉伸/降低片，这是 (AMH-HNF-TCCHF) 流动模型的缩写。所提出模型的偏微分方程通过合适的相似变换进行调整，生成具有物理变化的常微分系统。为了分析物理变化，ODE 系统的模拟是通过一种名为“改进的新迭代方法”(MNIM) 的新型数值技术进行的，该技术已被证明是快速、收敛和可靠的。拉伸/收缩参数、质量通量、热辐射量、热弛豫参数和速度和能量场中的普朗特数的物理变化结果如图所示。该模型强调了研究潜在医学领域的重要性，尤其是在工业中的 3D 对象和冷却程序中。