Characteristics of a bubble jet near a vertical wall

作     者：张阿漫 姚熊亮 李佳 

作者机构：College of Shipbuilding Engineering Harbin Engineering 

出 版 物：《Journal of Marine Science and Application》 (船舶与海洋工程学报（英文版）)

年 卷 期：2008年第7卷第1期

页      面：1-6页

学科分类：080704[工学-流体机械及工程] 08[工学] 0807[工学-动力工程及工程热物理] 

基　　金：the National Natural Science Foundation of China under Grant No. 50779007 the Specialized Research Fund for the Doctoral Program of Higher Education of China under Grant No. 20070217074) the Defence Advance Research Program of Science and Technology of Ship Industry under Grant No. 07J1.1.6 Harbin Engineering University Foundation under Grant No. HEUFT07069 

主　　题：bubble jet rigid wall boundary integral Bjerknes effect Blake criterion 

摘      要：A numerical model of a coupled bubble jet and wall was built on the assumption of potential flow and calculated by the boundary integral method. A three-dimensional computing program was then developed. Starting with the basic phenomenon of the interaction between a bubble and a wall, the dynamics of bubbles near rigid walls were studied systematically with the program. Calculated results agreed well with experimental results. The relationship between the Bjerknes effect of a wall and characteristic parameters was then studied and the calculated results of various cases were compared and discussed with the Blake criterion based on the Kelvin-impulse theory. Our analyses show that the angle of the jet’s direction and the pressure on the rigid wall have a close relationship with collapse force and the bubble’s characteristic parameters. From this, the application range of Blake criterion can be determined. This paper aims to provide a basis for future research on the dynamics of bubbles near a wall.