论文标题

通过可渗透壁的谐波扰动引起的通道中层流速度的振荡

Oscillations of laminar flow velocity in a channel induced by harmonic perturbation of mass injection velocity through the permeable wall

论文作者

Kulikovsky, Andrei

论文摘要

瞬态海军 - 可渗透壁的通道中不可压缩流体的层流方程将减小为单个方程,以进行纵向流速的横向轮廓。小型 - 振幅谐波扰动的注射速度诱导纵向速度的振荡,壁上的峰值。峰值中的振荡振幅随着沿通道的距离而大大增加。随着频率生长峰越来越靠近墙壁。

Transient Navies--Stokes equations for laminar flow of incompressible fluid in a channel with permeable wall are reduced to a single equation for the transversal profile of longitudinal flow velocity. Small--amplitude harmonic perturbation of injection velocity induces oscillations of longitudinal velocity with the peak at the walls. The oscillations amplitude in peaks dramatically increases with the distance along the channel; with the frequency growth peaks come closer to the walls.

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