Abstract:Compared with normal multiphase turbulent flow,charged multi-phase turbulent flow appears more complex due to the coupling between electric field and flow field.How to describe the coupling action with mathematic function and to model it are the main task in charged multi-phase turbulent flow.Based on the establishment of single-phase charged fluid turbulence model and charged particles pseudo-fluid multi-phase turbulence governing equations,a new simulation model was deduced with the double fluid modeling method regarding the charged particle phase as a fluid phase.In this model,the coupling action between turbulent flow field and electric field was described with electric conjunction term and this term will be modeled by using an electric-turbulence exchanging coefficient.This model could be applied in the accurate engineering simulation of big size complex charged multi-phase turbulent flow.
[1] Colbert S A,Caimcross R A.A discrete droplet transport model for predicting spray coating patterns of an electrostatic rotary atomizer[J].Journal of Electrostatics,2006,64(3):234-246[2] 张健,雷勇,周力行.湍流漩流流动的湍流模型理论研究与应用综述[J].东北大学学报(自然科学版),2001,22(z2):29-33[3] 周力行.湍流气粒多相流数值模拟理论的最近进展[J].燃烧科学与技术,1995,1(1):10-15[4] 王军锋,陈燕,罗惕乾.荷电流体 k-ε双方程湍流模型的建立[J].排灌机械,2003,21(5):43-46[5] 罗惕乾,王军锋,毛惠敏.荷电颗粒多相湍流数学模型构建初探[J].排灌机械.[6] 是勋刚.湍流[M].天津:天津大学出版社,1994[7] 王军锋,闻建龙,王泽.煤油荷电喷雾特性及喷雾流场的试验研究[J].机械工程学报,2002,38(7):37-40[8] 王军锋,闻建龙,罗惕乾.荷电喷雾两相湍流流场的数值计算[J].江苏大学学报(自然科学版),2004,25(1):13-16[9] Gaunta L F,Hughes J F,Harrisonb N M.Electrostatic deposition of charged insecticide sprays on electrically isolated insects[J].Journal of Electrostatics,2003,57(1):35-47[10] 王军锋.静电喷雾燃烧的基础研究[D].镇江:江苏大学,2002[11] Edward Law S.Agricultural electrostatic spray application:a review of significant research and development during the 20th century[J].Journal of Electrostatics,2001,51(1):25-42[12] 金晗辉.荷电两相湍流理论在病虫害防治技术中的应用研究[D].镇江:江苏理工大学,1999[13] 周浩生.荷电气固两相流动理论及应用[D].镇江:江苏理工大学,1997[14] 周力行.湍流气粒多相流数值模拟理论的最近进展[J].燃烧科学与技术,1995,1(1):10-14[15] 周力行.多相湍流反应流体力学[M].北京:国防工业出版社,2002[16] 周力行.湍流两相流动与燃烧的数值模拟[M].北京:清华大学出版社,1989