Direct numerical simulation of aerosol coagulation with van der Waals forces

Ian M. Kennedy, Stephen J. Harris

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

The van der Waals interaction energy has been computed for a large number of silver and water particle pairs in the range of 1 to 15 nm radius by first calculating the exact, retarded Hamaker factor for semi-infinite bodies and then applying a geometric correction for sphericity. The enhancement of particle collision rates has been deduced from these calculations. These values for the collisional enhancement were used in a direct numerical simulation of the coagulation of silver and water aerosols. Despite the size dependence of the van der Waals enhancement factors, the aerosol size distributions quickly attained nearly self-preserving forms.

Original languageEnglish (US)
Pages (from-to)489-497
Number of pages9
JournalJournal of Colloid and Interface Science
Volume130
Issue number2
DOIs
StatePublished - 1989

Fingerprint

Van der Waals forces
Direct numerical simulation
coagulation
Coagulation
Aerosols
direct numerical simulation
Silver
aerosols
Water
augmentation
silver
collision rates
particle collisions
preserving
water
radii
interactions
energy

ASJC Scopus subject areas

  • Colloid and Surface Chemistry
  • Physical and Theoretical Chemistry
  • Surfaces and Interfaces

Cite this

Direct numerical simulation of aerosol coagulation with van der Waals forces. / Kennedy, Ian M.; Harris, Stephen J.

In: Journal of Colloid and Interface Science, Vol. 130, No. 2, 1989, p. 489-497.

Research output: Contribution to journalArticle

Kennedy, Ian M. ; Harris, Stephen J. / Direct numerical simulation of aerosol coagulation with van der Waals forces. In: Journal of Colloid and Interface Science. 1989 ; Vol. 130, No. 2. pp. 489-497.
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