高校化学工程学报Issue(5)：1098-1105,8.DOI:10.3969/j.issn.1003-9015.2015.05.011
静电场中液滴变形及内部流动的研究
Droplet Deformation and its Internal Flow in Electrostatic Field
摘要
Abstract
The deformation and internal flow of the single droplet suspended in other vicious fluid under the influence of the electric field were simulated and calculated by adopting VOF (Volume of Fluid) method to track the interface and using leaky dielectric model to simulate the electric field. The calculated results indicate that the directions of deformation and internal flow depend on the physical properties of fluids. The direction of droplet deformation is linked to the assessing coefficientfd: whenfd<0 the droplet is stretched along transverse, whenfd>0 the droplet is stretched along vertical. The internal flow is linked to the assessing coefficientβ: whenβ<1 the direction is from the pole to the equator, and whenβ>1 the direction is from the equator to pole. The results were compared with theoretical, experimental and numerical results obtained by predecessors. When the rate of deformation is small, the results are consisted with theoretical, experimental and numerical results. When the rate of deformation is large, the results are consisted with experimental and numerical results but are discrepancy to theory.关键词
VOF模型/液滴变形/内部流动/离散液滴/数值模拟/界面张力Key words
VOF/droplet deformation/internal flow/dispersed droplet/numerical simulation分类
数理科学引用本文复制引用
王贞涛,董庆铭,张永辉,王军锋..静电场中液滴变形及内部流动的研究[J].高校化学工程学报,2015,(5):1098-1105,8.基金项目
国家自然科学基金(51106064),中国博士后科学基金(2012M511214)；江苏省博士后科学基金(1101149C)；江苏大学青年骨干教师培养工程项目；江苏省高校优势学科建设工程项目。 （51106064）
