平壁对空泡运动的影响研究

Influences of a Plane Wall on Bubble Motion

在全面考虑壁面对空泡运动粘性阻力和升力影响的基础上,建立了空泡在近壁区内的运动微分控制方程。通过频谱分析,考察了壁面的存在对空泡频率响应特性和湍强度等方面的影响,并与壁面对固体颗粒运动的影响进行了比较。

The motion equations of a bubble near a plane wall have been established with the lift force and wall effects on the drag force taken into consideration. The influences of wall on the frequency response of the bubble and the turbulent intensity of the bubble motion have been analyzed through frequency spectrum analysis method.