Purpose

This study aims to analyze the thermo-hydrodynamic characteristics for the mixed convection boundary layer flow of three-particle aqueous nanofluid on a shrinking porous plate with the influences of thermal radiation and magnetic field.

Design/methodology/approach

The basic equations have been normalized with the help of similarity transformations. The obtained equations have been solved numerically using the shooting method in conjunction with the sixth-order Runge–Kutta technique. Numerical results for the velocity and temperature are illustrated with varying relevant parameters.

Findings

The results reveal that the local drag coefficient increases with higher values of the magnetic field parameter, nanoparticle volume fraction and suction parameter. On the other hand, boosting the radiation parameter and nanoparticle concentration notably enhances heat transfer. Furthermore, it is noted that the suction parameter and magnetic field parameter both lead to an increase in velocity and promote the occurrence of dual solutions within the problem conditions.

Research limitations/implications

The limitations are that the model is appropriate for thermal equilibrium of base fluid and nanoparticles, and constant thermo-physical properties.

Originality/value

To the best of the authors' knowledge, no study has taken an attempt to predict the flow and heat transfer characteristics of unsteady mixed convection ternary hybrid nanofluid flow over a shrinking sheet, particularly under the influence of magnetic field and radiation. The findings obtained here may hold particular significance for those interested in the underlying theoretical and practical implications.

中文翻译：

---

三颗粒纳米水流体在收缩多孔板上的混合对流的双重特性

 目的

本研究旨在分析受热辐射和磁场影响的三粒子纳米水流体在收缩多孔板上的混合对流边界层流动的热流体动力学特性。

设计/方法/方法

基本方程已在相似性变换的帮助下进行了归一化。获得的方程是使用射击法结合六阶 Runge-Kutta 技术进行数值求解的。速度和温度的数值结果用不同的相关参数进行了说明。

 发现

结果表明，局部阻力系数随着磁场参数、纳米粒子体积分数和吸力参数值的提高而增加。另一方面，提高辐射参数和纳米粒子浓度会显著增强传热。此外，值得注意的是，吸力参数和磁场参数都会导致速度增加，并促进问题条件下对偶解的发生。

研究局限性/影响

局限性在于该模型适用于基础流体和纳米颗粒的热平衡，以及恒定的热物理特性。

 原创性/价值

据作者所知，还没有研究试图预测非稳态混合对流三元杂化纳米流体在收缩片上的流动和传热特性，特别是在磁场和辐射的影响下。这里获得的研究结果可能对那些对潜在理论和实践意义感兴趣的人来说具有特别的意义。