摘要
本文理论上较全面地分析了空泡在水涡轮机械流场中的受力，考虑了很多文献被忽略的速度梯度场中的Ｓａｆｆｍａｎ升力，空泡旋转时的Ｍａｇｕｓ升力等力．利用牛顿第二定律建立了流场中空泡的质心运动方程，同时建立了空泡在变压场中以及考虑气体扩散的径向运动方程，最后导出了空泡在不可压缩流体中运动的控制微分方程。
This paper theoreticall analyses the forces which act on a air bubble in water turbomachinery flow. The saffman force due to the velocity gradient, the Magus force due to air bubble rotating and so on which are neglected in many early papers are considered. Air bubble mass centre motion equation has been established by means of the Second Newton's Law. Air bubble radial motion equation has also been established considering the influence of variable pressure flow field, the effect of air diffusion and so on. This paper obtains the differential equation on 3-D air bubble motion in water turbomachinery.
出处
《四川工业学院学报》
1994年第2期24-34,共11页
Journal of Sichuan University of Science and Technology
关键词
水涡轮机械
空泡运动
理论研究
Air bubble
Motion
Water Turbomachinery
Theoretical study
