Accession Number : ADA329722
Title : Droplet Collision in Liquid Propellant Combustion
Descriptive Note : Final technical rept. 1 Jun 95-31 Jun 97
Corporate Author : PRINCETON UNIV NJ DEPT OF MECHANICAL AND AEROSPACE ENGINEERING
Personal Author(s) : Law, Chung K.
PDF Url : ADA329722
Report Date : 31 AUG 1997
Pagination or Media Count : 28
Abstract : Droplet collision is of relevance to spray combustion, intimate!y influencing the spray characteristics in the dense spray region. The present study aims to gain fundamental understanding on the mechanisms governing the observed phenomena of permanent coalescence, bouncing, and separation upon collision. For the present program a computer code was developed for droplet collision, allowing the study of the extent of droplet deformation, the dynamics of interdroplet flow, the relative importance of the gas resistance force as compared to the collisional inertia, and the relevant rheological properties of the gases and liquids. A criterion was derived for the transition from permanent coalescence to coalescence followed by separation.
Descriptors : *COMBUSTION, *COALESCENCE, *DROPS, *SPRAYS, *ATOMIZATION, EXPERIMENTAL DATA, INERTIA, WATER, GASES, HYDROCARBONS, LIQUID PROPELLANTS, COLLISIONS.
Subject Categories : Physical Chemistry
Combustion and Ignition
Distribution Statement : APPROVED FOR PUBLIC RELEASE