Purpose

This study aims to portray the systematic study of hybrid nanofluid with particle shape effect on significant heat transfer enhancement. The steady flow of hybrid nanoliquid in a microchannel with the aid of porous medium has been considered. The dispersion of copper and Al₂O₃ in water is taken as hybrid mixture. The impact of thermal radiation, slip length and convective conditions on flow and thermal features are examined numerically.

Design/methodology/approach

The modelled equations are made dimensionless by means of nondimensional entities. The solutions are computed numerically by the implementation of Runge–Kutta-based shooting technique. The results depict that the shape of hybrid mixtures plays a significant role in convective heat transfer. Relevant results on flow velocity, temperature, Nusselt number and friction factor for various physical constraints have been perused. The obtained outcomes are displayed graphically.

Findings

The acquired results depict that Nusselt number augments with Eckert number and solid volume fraction of hybrid nanoparticles, which has a vibrant role in enriching the heat transfer coefficient. Also, it is emphasized that the Nusselt number is larger for blade-shaped nanoparticle compared to other shapes.

Originality/value

The analysis of individual effect of thermal radiation, Joule heating, viscous dissipation and magnetic field on the flow of Cu and Al₂O₃ hybrid nanofluid through microchannel has vivacious role in augmenting heat transmission. Along with this, the impact of porous medium, shape factor, slip and convective peripheral conditions are also emphasized.

中文翻译：

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混合纳米液体流过具有颗粒形状因子、滑移和对流状态的微通道

目的

本研究旨在描述具有颗粒形状效应的混合纳米流体对显着传热增强的系统研究。考虑了借助多孔介质在微通道中实现混合纳米液体的稳定流动。铜和Al ₂ O ₃在水中的分散体被认为是混合混合物。对热辐射、滑动长度和对流条件对流动和热特征的影响进行了数值研究。

设计/方法/方法

建模方程通过无量纲实体变得无量纲。解决方案是通过实施基于 Runge-Kutta 的射击技术来数值计算的。结果表明混合混合物的形状在对流传热中起着重要作用。已经仔细研究了针对各种物理约束的流速、温度、努塞尔数和摩擦系数的相关结果。获得的结果以图形方式显示。

发现

获得的结果表明，努塞尔数随着埃克特数和混合纳米粒子的固体体积分数的增加而增加，这在丰富传热系数方面具有重要作用。此外，需要强调的是，与其他形状相比，刀片状纳米粒子的努塞尔数更大。

原创性/价值

分析热辐射、焦耳热、粘性耗散和磁场对Cu和Al ₂ O ₃杂化纳米流体通过微通道流动的个体效应对增强传热具有积极作用。与此同时，还强调了多孔介质、形状因子、滑移和对流外围条件的影响。