Study of Relationship between Coalescence Efficiency and the Radius of droplets in Warm Clouds

Abstract

The study of collision and coalescence mechanism for water droplets in cloud has a large importancebecause its represented major process in formation rain in warm clouds .In this study the, the relationship between the efficiency of coalescence ( coa E ) and the radius of dropletsin warm clouds had been studied by taking different radius of large droplets ( R ) ranged between(60 to 100m) with groups of small droplets ( r ) that has radius ranged by (5 to 20 m) because thesevalues represented nearly the range of radius of droplets occurred in warm clouds .The results appears that coalescence efficiency proportional directly with the radius of large droplet andinversely proportional with radius of small droplet