Stochastic growth of cloud droplets by collisions during settling

Madival, Deepak G (2018) Stochastic growth of cloud droplets by collisions during settling. In: THEORETICAL AND COMPUTATIONAL FLUID DYNAMICS, 32 (2). pp. 235-244.

PDF The_Com_Flu_Dyn_32-2_235_2018.pdf - Published Version Restricted to Registered users only Download (497kB) | Request a copy

Abstract

In the last stage of droplet growth in clouds which leads to drizzle formation, larger droplets begin to settle under gravity and collide and coalesce with smaller droplets in their path. In this article, we shall deal with the simplified problem of a large drop settling amidst a population of identical smaller droplets. We present an expression for the probability that a given large drop suffers a given number of collisions, for a general statistically homogeneous distribution of droplets. We hope that our approach will serve as a valuable tool in dealing with droplet distribution in real clouds, which has been found to deviate from the idealized Poisson distribution due to mechanisms such as inertial clustering.

Item Type:	Journal Article
Publication:	THEORETICAL AND COMPUTATIONAL FLUID DYNAMICS
Publisher:	SPRINGER, 233 SPRING ST, NEW YORK, NY 10013 USA
Additional Information:	Copy right for the article belong to SPRINGER, 233 SPRING ST, NEW YORK, NY 10013 USA
Department/Centre:	Division of Mechanical Sciences > Mechanical Engineering
Date Deposited:	19 Mar 2018 18:29
Last Modified:	19 Mar 2018 18:29
URI:	http://eprints.iisc.ac.in/id/eprint/59224

Actions (login required)

View Item