Purpose

The purpose of this study to analyze the unsteady magneto hydrodynamic incompressible viscous fluid flow along the porous parallel plates in which constant periodic suction/injection takes place at lower and upper plate, respectively. By the proper choice of stream function, they obtained exact solution analytically. Velocity components are obtained from exact solution.

Design/methodology/approach

Emissions of the pollutants from the aviation sectors are doubled compared to 2000. There are many recent developments that are actively developed to combat the emission by increasing the performance of the Jet engines. The role of the computational fluid dynamics and the numerical approaches are crucial in terms of research and development.

Findings

Velocity profiles like axial and radial have been drawn for various values of M, D, α and θ. The exact solutions have been solved by differential transformation method. The closed form analytical solutions are obtained for the stream function, axial and radial velocities and flow velocity.

Originality/value

The effects of Darcy parameter, magnetic parameter, Suction Reynolds number and frequency parameter on lower and upper plates are discussed through graphs.

中文翻译：

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DTM对倾斜磁场作用下喷气发动机燃烧单元间非定常粘性流的比较研究

目的

本研究的目的是分析沿多孔平行板的非定常磁流体动力学不可压缩粘性流体流动，其中下板和上板分别发生恒定的周期性吸入/注入。通过正确选择流功能，它们分析地获得了精确的解决方案。速度分量是从精确解中获得的。

设计/方法/方法

与 2000 年相比，航空部门的污染物排放量增加了一倍。最近有许多发展正在积极开发，以通过提高喷气发动机的性能来对抗排放。计算流体动力学和数值方法的作用在研究和开发方面至关重要。

发现

已经针对 M、D、α和θ 的各种值绘制了轴向和径向等速度曲线。精确解已通过微分变换方法求解。获得了流函数、轴向和径向速度以及流速的封闭形式解析解。

原创性/价值

通过图表讨论了达西参数、磁参数、吸入雷诺数和频率参数对上下板的影响。