Coalescence Collision of Two Droplets:Bubble Entrapment and the Effects of Important Parameters  Fulltext 

[ Mohammad Passandideh-Fard ] - Assistant Professor Mechanical Engineering Department, Ferdowsi University of Mashhad Mashhad, Iran
[ Ehsan Roohi ] - Graduate Student Mechanical Engineering Department, Ferdowsi University of Mashhad Mashhad, Iran

خلاصه مقاله:

In this study, coalescence collision of two water droplets is studied using a modified Volume of Fluid (VOF) method. The focus of this work is on head-on binary collision of two droplets; the effects of Reynolds number, drop size ratio and impact velocity on the coalescence process are investigated. In addition, air bubble entrapment phenomenon during droplet collision is discussed.

Spray, Atomization, Coalescence Collision, Droplet Impact, Air Bubble Entrapment, Volume of Fluid, Free Surface Flow, Numerical Simulation