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首页> 外文期刊>Arabian Journal for Science and Engineering >Interpretation of Chemical Reactions and Activation Energy for Unsteady 3D Flow of Eyring–Powell Magneto-Nanofluid
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Interpretation of Chemical Reactions and Activation Energy for Unsteady 3D Flow of Eyring–Powell Magneto-Nanofluid

机译：Eyring–Powell磁-纳流体非定常3D流动的化学反应和活化能的解释

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摘要

Refrigeration of electronic instruments, in view of environmental concern and energy security, is one of the main challenges of the new generation technology. The miniaturization of electronic devices has benefits, but in such situations, the heat dissipated per unit area rises in an uncontrolled manner. This can be done by either improving the characteristics of secondary and primary working liquids or by modifying the system. In this article, we present a comprehensive detail of unsteady 3D flow of Eyring-Powell nanofluid with convective heat and mass flux conditions. The effects of heat source-sink and nonlinear thermal radiations are considered in the Eyring-Powell nanofluid model. Additionally, chemical mechanism responsible for the mass transfer such as activation energy is accounted in the current relation. Moreover, suitable transformations are betrothed to obtain coupled nonlinear ordinary differential equations (ODEs) from the system of highly nonlinear coupled partial differential equations and numerical solution of system of coupled ODEs is obtained by means of bvp4c scheme. Our findings demonstrate that heat flux at the wall declines by uplifting the chemical reaction rate constant. The concentration of Eyring-Powell nanofluid is directly affected by activation energy of chemical process, and a trend of thermophoretic force on magneto-nanofluid is qualitative, contradictory to that of Brownian motion.
机译：考虑到环境和能源安全性，电子仪器的制冷是新一代技术的主要挑战之一。电子设备的小型化具有益处，但是在这种情况下，每单位面积散发的热量以不受控制的方式增加。这可以通过改善二级和一级工作液体的特性或通过修改系统来完成。在本文中，我们提供了对流热和质量通量条件下Eyring-Powell纳米流体的非稳态3D流动的详细信息。 Eyring-Powell纳米流体模型考虑了热源和非线性热辐射的影响。另外，在当前关系中考虑了负责质量传递的化学机理，例如活化能。此外，对适当的变换进行了订婚，以从高度非线性的耦合偏微分方程组获得耦合的非线性常微分方程（ODE），并通过bvp4c格式获得了耦合ODE系统的数值解。我们的发现表明，通过提高化学反应速率常数，壁上的热通量会下降。 Eyring-Powell纳米流体的浓度直接受化学过程活化能的影响，磁纳米流体上的热泳力的趋势是定性的，与布朗运动的趋势相反。

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