Purpose

This study aims to investigate the irreversibility associated with the Fe3O4–Co/kerosene hybrid-nanofluid past a wedge with nonlinear radiation and heat source.

Design/methodology/approach

This study reports the numerical analysis of the hybrid nanofluid model under the implications of the heat source and magnetic field over a static and moving wedge with slips. The second law of thermodynamics is applied with nonlinear thermal radiation. The system that comprises differential equations of partial derivatives is remodeled into the system of differential equations via similarity transformations and then solved through the Runge–Kutta–Fehlberg with shooting technique. The physical parameters, which emerges from the derived system, are discussed in graphical formats. Excellent proficiency in the numerical process is analyzed by comparing the results with available literature in limiting scenarios.

Findings

The significant outcomes of the current investigation are that the velocity field uplifts for higher velocity slip and magnetic strength. Further, the heat transfer rate is reduced with the incremental values of the Eckert number, while it uplifts with thermal slip and radiation parameters. An increase in Brinkmann’s number uplifts the entropy generation rate, while that peters out the Bejan number. The results of this study are of importance involving in the assessment of the effect of some important design parameters on heat transfer and, consequently, on the optimization of industrial processes.

Originality/value

This study is original work that reports the hybrid nanofluid model of Fe3O4–Co/kerosene.

中文翻译：

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MHD 和非线性热辐射对混合纳米流体通过具有热源和熵产生的楔形的影响

目的

本研究旨在研究与 Fe3O4-Co/煤油混合纳米流体通过具有非线性辐射和热源的楔子相关的不可逆性。

设计/方法/方法

本研究报告了混合纳米流体模型在热源和磁场影响下对具有滑移的静态和移动楔子的影响的数值分析。热力学第二定律适用于非线性热辐射。由偏导数的微分方程组成的系统通过相似变换重构为微分方程组，然后用射击技术通过Runge-Kutta-Fehlberg求解。从派生系统中出现的物理参数以图形格式进行讨论。通过将结果与有限场景中的现有文献进行比较，分析了对数值过程的出色熟练程度。

发现

当前调查的重要结果是速度场升高以实现更高的速度滑移和磁场强度。此外，传热率随着埃克特数的增加而降低，而随着热滑移和辐射参数的增加而上升。布林克曼数的增加会提高熵生成率，而这会逐渐减弱 Bejan 数。这项研究的结果非常重要，涉及评估一些重要设计参数对传热的影响，从而对工业过程的优化进行评估。

原创性/价值

这项研究是报告 Fe3O4-Co/煤油混合纳米流体模型的原创工作。