MAPS OF INTERACTION REGIMES OF WATER DROPLETS IN A GAS MEDIUM WITH ACCOUNT OF HIGH-SPEED SPATIAL VIDEO RECORDING

The authors give results of the performed comparative analysis of typical maps of interaction regimes of water droplets (recoil, scatter, breakup, and coagulation). Using a group of high-speed spatial video recording cameras, spatial and two-dimensional recording of collisions of droplets has been performed. The scientifi c novelty of the work is that the authors have corrected the ideas of the reasons for the diff erences of the existing maps of interaction regimes with account taken of the typical regularities of spatial recording of the droplet interaction. The most-in demand schemes of processing of experimental results have been used with account of the dimensionless angular and linear parameters of interaction, and also of the ranges of variation of the Weber number making it possible to assess the contribution of the dimensions and velocities of the droplets in determining the conditions of coagulation, recoil, scatter, and breakup in the latter. Diff erences of the interaction regimes in boundary (limiting) implementation conditions, and also in the number and dimensions of droplets formed upon the breakup have been singled out.
   
Author:  O. V. Vysokomornaya ,  N. E. Shlegel′ ,  P. A. Strizhak
Keywords:  droplet of a liquid, interaction, collisions, recoil, coagulation, scatter, breakup
Page:  763