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Numerical modeling and spatial stability analysis of the wall jet flow of nanofluids with thermophoresis and brownian effects
Propulsion and Power Research ( IF 5.3 ) Pub Date : 2019-08-24 , DOI: 10.1016/j.jppr.2019.06.002
Amin Jafarimoghaddam , Fatemeh Shafizadeh

The present work describes similarity solution to a general scheme for the wall jet flow of nanofluids, accounting both the similarity branches (say upper and lower), allowed with respect to the suction and moving wall conditions in the context of Glauert type e-jets. Before proceeding with this, a spatial stability analysis is performed to check the stability of the similarity modes. Results indicated that the upper similarity branch is possibly stable; whilst, the lower branch is not likely to reside in actual physics. The governing transport equations of mass and energy subject to a general two-phase modeling framework were transformed into similarity equations. The involved equations were then solved numerically employing the standard 4th order Runge-Kutta together with shooting technique. The influence of the involved parameters is shown graphically and in a detailed manner. In the last section, it is presented closed-form algebraic solution to the energy equation for the base fluids with a general convective boundary condition.



中文翻译:

具有热泳和布朗效应的纳米流体壁面射流的数值模拟和空间稳定性分析

本工作描述了纳米流体壁面射流通用方案的相似性解决方案,考虑了在Glauert型电子射流的情况下相对于吸力和运动壁条件所允许的相似性分支(例如上下)。在进行此操作之前,将执行空间稳定性分析以检查相似性模式的稳定性。结果表明,上相似分支可能是稳定的。而较低的分支不太可能存在于实际物理学中。将受一般两相建模框架约束的质量和能量的控制输运方程转换为相似方程。然后,使用标准的四阶Runge-Kutta和射击技术对所涉及的方程进行数值求解。所涉及参数的影响以图形方式详细显示。在最后一部分中,给出了具有一般对流边界条件的基础流体的能量方程的闭式代数解。

更新日期:2019-08-24
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