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Estimation of homogeneous nucleation flux via a kinetic modelThe proposed kinetic model for condensation under homogeneous conditions, and the onset of unidirectional cluster growth in supersaturated gases, does not suffer from the conceptual flaws that characterize classical nucleation theory. When a full set of simultaneous rate equation is solved, a characteristic time emerges, for each cluster size, at which the production rate, and its rate of conversion to the next size (n + 1) are equal. Procedures for estimating the essential parameters are proposed; condensation fluxes J(kin) exp ss are evaluated. Since there are practical limits to the cluster size that can be incorporated in the set of simultaneous first-order differential equations, a code was developed for computing an approximate J(th) exp ss based on estimates of a 'constrained equilibrium' distribution, and identification of its minimum.
Document ID
19910055867
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Wilcox, C. F.
(Cornell Univ. Ithaca, NY, United States)
Bauer, S. H.
(Cornell University Ithaca, NY, United States)
Date Acquired
August 15, 2013
Publication Date
June 15, 1991
Publication Information
Publication: Journal of Chemical Physics
Volume: 94
Issue: 12:00 PM
ISSN: 0021-9606
Subject Category
Thermodynamics And Statistical Physics
Accession Number
91A40490
Funding Number(s)
CONTRACT_GRANT: NSF AST-87-04623
CONTRACT_GRANT: NAGW-1262
Distribution Limits
Public
Copyright
Other

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