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Liu Xiaobing; Zeng Qingchuan; Liang Zhu; Cheng Liangjun (Huazhong Univ. of Science and Technoloy)  
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.
【CateGory Index】: TK730
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