Numerical simulation of gas-liquid two-phase jet flow in air-bubble generator
Air-bubble generator is the key part of the self-inspiration type swirl flotation machines, whose flow field structure has a great effect on flotation. The multiphase volume of fluid (VOF), standard k-ε turbulent model and the SIMPLE method were chosen to simulate the present model; the first order upwind difference scheme was utilized to perform a discrete solution for momentum equation. The distributing law of the velocity, pressure, turbulent kinetic energy of every section along the flow direction of air-bubble generator was analyzed. The results indicate that the bubbles are heavily broken up in the middle cross section of throat sect and the entrance of diffuser sect along the flow direction, and the turbulent kinetic energy of diffuser sect is larger than the entrance of throat sect and mixing chamber.
air-bubble generator numerical simulation flow field breaking
CHEN Wen-yi(陈文义) WANG Jing-bo(王静波) JIANG Nan(姜楠) ZHAO Bin(赵斌) WANG Zhen-dong(王振东)
Department of Process Equipments and Control Engineering, Hebei University of Technology,Tianiin 300 Department of Mineral Processing Engineering, Heilongjing Institute of Science and Technology,Harbin Department of Mechanics, Tianjin University, Tianjin 300072, China
国际会议
长沙
英文
140-144
2008-09-28（万方平台首次上网日期，不代表论文的发表时间）