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Computational single phase comparative study of inclined MHD in a Powell-Eyring nanofluid

机译：鲍尔眼线纳米流体倾斜MHD的计算单相比较研究

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摘要

In this study, the heat transfer and entropy of transient non-Newtonian Powell-Eyring nanofluid flow is studied. The nanofluid flows over a stretched flat surface, moving nonuniformly. The flow and heat transfer properties are analyzed subject to a convective heated slippery surface. This study also examined the thermal radiation, nanoparticle shapes, inclined magnetic field (B), and joule heating. The governing equations of flow are formulated in partial differential equations (PDEs). A numerical technique utilizes the Keller Box Method to find the similarity solution of the reduced ordinary differential equations, converted from PDEs by using an appropriate transformation. Two different nanofluids, copper-methanol (Cu-MeOH) and silicon carbide-methanol (SiC-MeOH), are considered in the analysis. Significant results of various parameters for the flow, heat, Skin friction (C_f), Nusselt number (Nu), and entropy analysis are described graphically. This study's remarkable finding is that the thermal conductivity in Powell-Eyring phenomena gradually increases compared to the conventional fluid. The Cu-MeOH based nanofluid is found to be a superior thermal conductor instead of the SiC-MeOH based nanofluid. The entropy of the system exaggerates with the incorporation of nanoparticle volume fraction Φ, thermal radiation Nr, and material parameter A. It is found that the slip parameters work as a retarded force to the system and decrease the system's entropy.
机译：在本研究中，研究了瞬态非牛顿鲍鱼纳米流体流动的传热和熵。纳米流体流过拉伸的平坦表面，移动不均匀。分析流动和传热性质，受对流加热的光滑表面。该研究还研究了热辐射，纳米粒子形状，倾斜磁场（B）和焦耳加热。流动的控制方程在部分微分方程（PDE）中配制。数值技术利用凯勒盒方法来找到从PDE转换的降低的常微分方程的相似解。在分析中考虑了两种不同的纳米流体，铜 - 甲醇（Cu-MeOH）和碳化硅 - 甲醇（SiC-MeOH）。图形地描述了流动，热，皮屑（C_F），NUSERET号（NU）和熵分析的各种参数的显着结果。该研究的显着发现是，与常规流体相比，鲍尔卵巢现象中的导热率逐渐增加。发现Cu-MeOH基纳米流体是优异的热导体代替SiC-MeOH的纳米流体。系统的熵夸大了纳米颗粒体积分数φ，热辐射NR和材料参数A.发现滑移参数作为系统的延迟力并降低系统的熵。

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