摘要
为获取运行时间对油水分离动态特性的影响,考虑油水汽三相流、水滴蒸发相变等因素,建立滤油机的油水分离流场的数学物理模型及水滴运动蒸发的相变方程;分析运行时间对油水分离过程中油水汽三相体积分数分布以及轴向脱水率的影响,表明不同运行时间油水汽三相流的动态特性,运行时间显著影响油水分离的脱水效率,为研究滤油机的油水分离机理奠定基础.
To study influence of runtime on dynamic characteristics of water/oil separation, a mathematical model is established to describe flow field in vacuum oil purifier. Evaporation of droplet phase transition equations are established, considering effect of threephase flow of oil/water/vapor and water droplets evaporation phase change. Influences of runtime on oil/water/vapor threephase volume fraction distribution and axial dehydration rate are analyzed. Dynamic characteristics of oil/water/vapor threephase flow at different runtime is indicated. Efficiency of dehydration of water/oil separation is enhanced with runtime. It provides a foundation for further research on water/oil separation mechanism in vacuum oil purifier.
出处
《计算物理》
CSCD
北大核心
2015年第5期579-585,共7页
Chinese Journal of Computational Physics
基金
国家自然科学基金(51375516)
重庆基础与前沿研究(cstc2014jcyj A90015
cstc2013jcyj A90021)
重庆市教委科技(KJ130710)
重庆市应用技术重点项目(cstc2014yykf B90002)
重庆市教委科技重点(KJZH14210)资助项目
关键词
运行时间
油水分离
三相流
脱水率
run-time
water/oil separation
three-phase flow
dehydration rate
