Numerical Simulation of Predict Bubble Generation Diameter
Bubble formation size at an orifice immerged in liquid is investigated by experimental and numerical simulation assuming a constant gas flow rate. A water analogy experiment was conducted on the bubble formation in a polyvinyl alcohol solution. The Volume-of fluid (VOF) method was applied to research the formation process in axisymmetric coordinates in the commercial solver Fluent The bubble diameter is evaluated at the bubble detachment time from the fact that the bubble volume is simply given by the product of the gas flow rate and time elapsed. The predicted bubble detachment diameters are in good agreement with the experimental date. Factors affecting bubble detach diameters was studied using numerical simulation. Results show that the bubble diameter increases with orifice diameter, air flow rate, surface tension, and decreases with contact angle. The effect of last one is most important among all the factors.
bubble formation volume-of-fluid numerical simulation
Liu Hong Wu Xifeng Xie Maozhao Yin Hongchao Wang Deqing
School of Energy and Power, Dalian University of Technology, Dalian 116024, China School of Materials Science and Engineering, Dalian Jiaotong University, Dalian 116024, China
国际会议
The 3rd International Symposium on Modern Mining & Safety Technology Proceedings(第三届现代采矿与安全技术国际学术会议)
辽宁阜新
英文
169-173
2008-08-04（万方平台首次上网日期，不代表论文的发表时间）