A novel theoretical breakup kernel function for bubbles/droplets in a turbulent flow

作者：Wang TF; Wang JF^*; Jin Y

来源：Chemical Engineering Science, 2003, 58(20): 4629-4637.

DOI：10.1016/j.ces.2003.07.009

• bubble/droplet
• breakup
• daughter size distribution
• eddy

Several models for the daughter bubble/droplet size distribution are reviewed and a detailed discussion is given to get a better understanding of the daughter size distribution. A novel theoretical break-up kernel function for bubbles/droplets in a turbulent flow, based on an eddy-bubble/droplet collision method, is developed. It takes into account the energy distribution of turbulent eddies, effect of capillary pressure and surface energy increase during bubble/droplet breakup. An increase in the mother bubble/droplet size and energy dissipation rate increases the probability of unequal breakup. The model prediction is in good agreement with experimental results and the underlying physical situation.

• 出版日期2003-10
• 单位清华大学