Changes in scavenging rate coefficients due to electric charge on droplets and particles

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Scopus citations

Abstract

Monte-Carlo simulations of diffusion have been incorporated in a trajectory model of scavenging of aerosol particles by charged cloud droplets. For same sign charges on particles and droplets there is both a long range Coulomb repulsion and a short range image charge attraction. For smaller particles with higher mobility the repulsion dominated the change in scavenging rate from the Brownian and phoretic values, with a reduction in collision rate coefficients. For larger particles with lower mobility the image attraction dominates the change, with an increase in collision rates. For opposite sign charges the long and short range attractions both increase the scavenging rate for all particle radii. A parameterization of some of the results has been made.

Original languageEnglish
Title of host publicationNucleation and Atmospheric Aerosols - 19th International Conference
Pages797-800
Number of pages4
DOIs
StatePublished - 2013
Event19th International Conference on Nucleation and Atmospheric Aerosols, ICNAA 2013 - Fort Collins, CO, United States
Duration: 23 Jun 201328 Jun 2013

Publication series

NameAIP Conference Proceedings
Volume1527
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

Conference19th International Conference on Nucleation and Atmospheric Aerosols, ICNAA 2013
Country/TerritoryUnited States
CityFort Collins, CO
Period23/06/1328/06/13

Keywords

  • Electro-anti-scavenging Scavenging rate coefficients
  • Electro-scavenging

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