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首页> 外文期刊>Physica Scripta: An International Journal for Experimental and Theoretical Physics >Flow of a micropolar CNT-based nanofluid across a squeezing channel
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Flow of a micropolar CNT-based nanofluid across a squeezing channel

机译：基于Micropolar CNT的纳米流体流过挤压通道

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This study investigates the flow of viscous micropolar nanofluids. Single-walled carbon nanotubes are taken as the solid constituent. Dynamic viscosity is temperature dependent. The flow take place across two parallel squeezing plates with an unsteady magnetic field normal to the surface of the plates. The effects of thermal radiation are also determined. The problem is modeled with the help of micropolar fluid theory. The governing equations are nonlinear coupled partial differential equations, which are non-dimensionalized and then transform to ordinary differential equations by suitable similarity transformations. These highly nonlinear coupled ordinary differential equations are then solved with an implicit finite difference scheme called the Keller box method. This method has second order accuracy and is unconditionally stable. Graphical results are plotted for quantities of physical interest such as velocity, temperature, Nusselt number, and skin friction. The study is focused on the flow behavior of fluid keeping dynamic viscosity sensitive to temperature. It has been concluded that the skin friction coefficient and angular velocity profile rises while the linear velocity of the fluid body decreases with the magnitude of the variable viscosity parameter.
机译：本研究研究了粘性微柱纳米流体的流动。将单壁碳纳米管作为固体成分。动态粘度是温度依赖性。流动发生在两个平行的挤压板上，其具有垂直于板表面的不稳定磁场。还确定了热辐射的影响。在微柱流体理论的帮助下建模了问题。控制方程是非线性耦合的偏微分方程，其是非尺寸的，然后通过合适的相似性变换转换为常规差分方程。然后通过称为Keller Box方法的隐式有限差分方案来解决这些高度非线性耦合常微分方程。该方法具有二阶精度，无条件稳定。图解结果绘制了诸如速度，温度，露珠数和皮肤摩擦的数量。该研究专注于流体对温度敏感动态粘度的流动性能。已经得出结论，皮肤摩擦系数和角速度曲线上升，而流体体的线速随变化粘度参数的大小而降低。

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