单液滴撞击平面液膜飞溅过程的CLSVOF模拟  

CLSVOF simulation for splashing of single drop impact on flat liquid film

作　　者：梁刚涛[1] 沈胜强[1] 杨勇[1] 

机构地区：[1]大连理工大学能源与动力学院辽宁省海水淡化重点实验室,辽宁大连116024

出　　处：《热科学与技术》2012年第1期8-12,共5页Journal of Thermal Science and Technology

基　　金：国家自然科学基金资助项目(51176017;50976016)

摘　　要：采用CLSVOF(coupled level set and volume of fluid)方法对单液滴撞击平面液膜初期的飞溅过程进行了数值模拟,探讨了撞击速度和液膜厚度对撞击后形成冠状水花形态及扩展直径的影响。结果显示,扩展直径随撞击速度的增大而增大,随液膜厚度的增大而减小,CLSVOF方法可较好地用于液滴撞击过程的数值计算。Splashing process in the early stage of single drop impact on flat liquid film was simulated numerically by using coupled level set and volume of fluid method.Influence of impact velocity and film thickness on the crown shape and diameter was discussed,and the results indicated that the crown diameter could be increased by increasing impact velocity and reducing film thickness.CLSVOF method is suitable for the simulation of splashing process.

关 键 词：clsvof 液滴 撞击速度 液膜厚度 

分 类 号：O359+.1[理学—流体力学]