高压电场作用下油中液滴变形与极化

Research on Deformation and Polarization of Oil Droplet under the Action of High-voltage Electric Field

常采用圆球模型研究高压电场作用下油中液滴的极化特性,对于变形液滴的极化特性研究报道较少;针对变形液滴,建立椭球液滴模型,运用椭球坐标系得到电场中长球形液滴内部电场分布,进而研究液滴变形对其极化特性的影响;通过算例计算分析,表明液滴大变形对极化影响较大,椭球模型在研究电场破乳动力学方面优于圆球模型。

Spherical model is used to study the polarization characteristics of the droplet in oil under the action of high-voltage electric field,however,there are few reports on the researches on the polarization characteristics of deformed droplet.According to deformed droplet,ellipsoid droplet model is set up,the frame of axes of the ellipsoid is used to obtain electric field distribution in inner prolate-sphere droplet in electric field in order to further study the influence of droplet deformation on its polarization characteristics.The calculation and analysis based on examples indicated that large deformation of the droplet had bigger impact on its polarization and that ellipsoid model was better than spherical model in the research on electro-demulsification dynamics.