Purpose

The purpose of this paper is to study flow of the Marangoni boundary layer pasta surface embedded in a porous medium saturated by a hybrid nanofluid in the presence of a magnetic field and thermal radiation.

Design/methodology/approach

The governing model was converted into ordinary differential equations applying proper similarity transformations. Therefore, Laplace transform was used to exactly solve the resulted equations. Hence, the influence of the velocity profile and temperature distribution was investigated under impacts of the involved parameters.

Findings

In the case of regular fluid, i.e. the solid volume fractions are zeros, the current results are in a very good agreement with those in the literature. It was found that the velocity decreases (increases) on increasing the parameters of copper-nanoparticles volume fraction, magnetic field and suction (permeability and injection). Further, the temperature increases (decreases) with an increase of the copper-nanoparticles volume fraction, magnetic field, injection and radiation (permeability and suction).

Originality/value

The current results of the Marangoni boundary layer problem for hybrid nanofluids are new, original and extend the previous problems investigated by many authors for the case of regular/nano fluids.

中文翻译：

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具有热辐射的混合纳米流体的MHD Marangoni边界层问题

目的

本文的目的是研究在磁场和热辐射作用下，嵌入混合纳米流体饱和的多孔介质中的Marangoni边界层面食表面的流动性。

设计/方法/方法

应用适当的相似变换，将控制模型转换为常微分方程。因此，使用拉普拉斯变换来精确求解所得方程。因此，在相关参数的影响下研究了速度分布和温度分布的影响。

发现

在常规流体的情况下，即固体体积分数为零，当前结果与文献中的结果非常吻合。结果发现，随着铜纳米颗粒体积分数，磁场和吸力（磁导率和注入）参数的增加，速度降低（增加）。此外，温度随着铜纳米颗粒的体积分数，磁场，注入和辐射（磁导率和吸力）的增加而升高（降低）。

创意/价值

混合纳米流体的Marangoni边界层问题的当前结果是新颖的，新颖的，并扩展了许多作者针对常规/纳米流体情况研究的先前问题。