The effects of surfactants on droplet behaviour at intermediate Reynolds numbers. Part II. Transient deformation and evaporation

Research output: Contribution to journalArticlepeer-review

Authors

Colleges, School and Institutes

Abstract

Early life histories of clean and contaminated n-heptane droplets injected into high-temperature air (1000 K, 10 aim) at a Reynolds number of 100 are examined in an effort to determine the effects of surfactants on droplet behaviour. Transient variations in droplet shape, mass, and velocity, and all effects due to liquid-phase motion and heating, and variable thermophysical properties are included in this numerical study. A detailed analysis of droplet oscillation, surfactant transport, interfacial stresses, liquid-phase motion, droplet drag, and heat and mass transfer is presented along with engineering correlations which may be useful in spray modelling.

Details

Original languageEnglish
Pages (from-to)491-501
Number of pages11
JournalChemical Engineering Science
Volume51
Issue number3
Publication statusPublished - Feb 1996

Keywords

  • NUMERICAL-ANALYSIS, MASS-TRANSFER, VAPORIZATION, COMBUSTION, SPRAYS, STREAM, HEAT