Open AccessХарактеристики "отскока" взаимодействующих капель воды
Author(s) -
Н.Е. Шлегель,
П.А. Стрижак
Publication year - 2019
Publication title -
žurnal tehničeskoj fiziki
Language(s) - English
Resource type - Journals
eISSN - 1726-748X
pISSN - 0044-4642
DOI - 10.21883/jtf.2019.06.47630.348-18
Subject(s) - coalescence (physics) , mechanics , envelope (radar) , combustion , high speed photography , weber number , water vapor , meteorology , materials science , environmental science , chemistry , physics , aerospace engineering , engineering , reynolds number , radar , organic chemistry , astrobiology , turbulence
AbstractWe report on the results of experiments devoted to analysis of conditions and characteristics of “bounce” (approach and interaction through a gaseous buffer envelope) of water droplets moving in a gaseous media with different parameters: velocity and direction of motion, temperature, and composition. Experiments were performed in flows of air, water vapor, and combustion products. Peculiarities of bounce of droplets with different initial temperatures are considered, and the results obtained at 18–20 and 60–80°C are compared. More than 1000 collisions of droplets recorded by high-speed photography are divided into groups of bounce, coalescence, separation, and disruption. The results of criterion processing using the Weber numbers are obtained.