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首页> 美国卫生研究院文献>Scientific Reports >Effects of Different Shaped Nanoparticles on the Performance of Engine-Oil and Kerosene-Oil: A generalized Brinkman-Type Fluid model with Non-Singular Kernel
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Effects of Different Shaped Nanoparticles on the Performance of Engine-Oil and Kerosene-Oil: A generalized Brinkman-Type Fluid model with Non-Singular Kernel

机译：不同形状的纳米颗粒对机油和煤油性能的影响：具有非奇异核的广义Brinkman型流体模型

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In the modern era, diathermic oils have been gotten the great attention from researchers due to its notable and momentous applications in engineering, mechanics and in the industrial field. The aim of this paper is to model the problem to augment the heat transfer rate of diathermic oils, specifically, Engine-oil (EO) and Kerosene-oil (KO) are taken. The present work is dedicated to examine the shape impacts of molybdenum-disulfide (MoS2) nanoparticles in the free convection magnetohydrodynamic (MHD) flow of Brinkman-type nanofluid in a rotating frame. The problem is modeled in terms of partial differential equations with oscillatory boundary conditions. The integer-order model is transformed to fractional-order model in time (Caputo-Fabrizio). The exact solutions are obtained using the Laplace transform technique. Figures are drawn to compare the different non-spherically shaped molybdenum-disulfide nanoparticles on secondary and primary velocities. The Nusselt number is computed in the tabular form and discussed in detail. It is worth noting that platelet and blade shape of MoS2 nanoparticle has more tendency to improve the heat transfer rate of both fluids as compared to nanoparticles with brick and cylinder shapes. It is also shown that the rate of heat transfer enhances 13.51% by adding MoS2 in engine oil which improved its lubrication properties.
机译：在现代时代，透热油因其在工程，机械和工业领域中的显着和重大应用而受到研究人员的广泛关注。本文的目的是对增加透热油的传热速率的问题进行建模，特别是采用机油（EO）和煤油（KO）。本工作致力于检查旋转框架中Brinkman型纳米流体的自由对流磁流体动力学（MHD）流中的二硫化钼（MoS2）纳米颗粒的形状影响。该问题是根据具有振荡边界条件的偏微分方程建模的。及时将整数阶模型转换为分数阶模型（Caputo-Fabrizio）。使用Laplace变换技术可获得确切的解。绘制数字以比较次级和初级速度上不同的非球形二硫化钼纳米颗粒。努塞尔数以表格形式计算并详细讨论。值得注意的是，与具有砖和圆柱形状的纳米颗粒相比，MoS2纳米颗粒的薄片和叶片形状具有提高两种流体传热速率的更多趋势。还显示出通过在发动机油中添加MoS2改善了其润滑性能，传热率提高了13.51％。

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