纳米颗粒形状对嵌入水、乙二醇和发动机基Cu、Al2O3和SWCNTs多孔介质的水平板非达西混合对流的影响

Nur Atikah bt Adnan, A. Ramasamy
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引用次数: 0

摘要

研究了纳米颗粒形状对嵌入纳米流体饱和多孔介质的不透水水平平板上非达西混合对流边界层流动的影响。在最重要的研究中,三种类型的纳米颗粒形状被用于这些研究,即球形,圆柱形和片状。利用相似变换将控制偏微分方程重新生成为常微分方程,利用Runge - Kutta - Fehlberg方法结合MAPLE 18的射击技术进行数值求解。板的表面保持在恒定的温度和恒定的纳米颗粒体积分数。给出了混合对流参数、初始参数、体积分数参数和经验形状因子影响下的温度曲线。结果表明,固体体积分数和纳米颗粒形状在非达西流动中具有强大的输出。层流纳米颗粒的形状比其他纳米颗粒的形状预测更好的传热结果。
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Nanoparticle Shapes Effects on Non-Darcy Mixed Convection from a Horizontal Plate Embedded in Water, Ethylene Glycol and Engine Based Cu, Al2O3 and SWCNTs Porous Media
Impact of nanoparticle shapes on non-Darcy mixed convection boundary layer flow over an impermeable horizontal flat plat embedded in a porous medium saturated by a nanofluid has been investigated. In distinctly most paramount studies, three types of nanoparticle shapes are employed into these studies namely sphere, cylinder and lamina. The controlling Partial Differential Equations are regenerated into a set of ordinary differential equations by manipulating similarity transformation and it is determined numerically by using Runge Kutta Fehlberg method with shooting technique from MAPLE 18. The surface of the plate is maintained at a constant temperature and constant nanoparticle volume fraction. Temperature profiles are graphically and tabular provided for the effects of mixed convection parameter, initial parameter, volume fraction parameter and empirical shape factor. The results show that solid volume fraction and nanoparticle shapes have powerful outputs in non-Darcy flow. Laminar nanoparticle shapes predicts a better results on heat transfer rather than other nanoparticle shapes.
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