关键词:

电场破乳, 乳胶粒子, 作用力系数, 流函数, 椭球谐函数

Abstract:

In emulsified oil, flexing oscillation of latex particle happens in the pulse electric field.The exact solution of the force acting on latex particle by oil is not clear yet.By establishing a model of single particle’s flexing and deformation in oil, the velocity potential of the liquid inside the particle was obtained.The flow function of the liquid outside the particle was derived from the ellipsoid harmonics function.In the course of latex particle’s deformation, the force produced by the oil around was calculated at the instant of deformation with the theory of Stokes flow.The results of numerical calculation showed that at a small deformation of particle, the force coefficients agreed well with the calculation based on the assumption of linear distribution of particle’s deformation.When the length of particle’s long axis was greater than three times of short axis, the force coefficient tended to a minimal value, close to zero.So the force on deforming latex particle by oil at an arbitrary moment could be solved with the exact expression.

Key words:

电场破乳, 乳胶粒子, 作用力系数, 流函数, 椭球谐函数