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Title: Comparative analysis of condensation models within DSMC

Two condensation process modeling approaches within DSMC methodology are compared. The first is based on the modified nucleation theory which correctly describes small clusters and the second on the kinetic theory and considers not only supercritical clusters, but clusters of all sizes including dimers. The relaxation of the size distribution function is calculated for the spatially homogeneous cases, where the monomer parameters are kept constant. As an example the vapour of Cu atoms is considered and importance of taking into account of the internal energies of clusters is shown. Peculiarities of the classical and kinetic approaches are discussed herein.
Authors:
 [1] ;  [2]
  1. Center for Advanced Studies, Saint-Petersburg State Polytechnical University, Polytechnicheskaya, 29, St.-Petersburg, 195251 (Russian Federation)
  2. Coddan Technologies LLC, Beloostrovskaya, 22, office 430, St.-Petersburg, 197342 (Russian Federation)
Publication Date:
OSTI Identifier:
22390559
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 1628; Journal Issue: 1; Conference: 29. International Symposium on Rarefied Gas Dynamics, Xi'an (China), 13-18 Jul 2014; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; ATOMS; COMPUTERIZED SIMULATION; COPPER; DISTRIBUTION FUNCTIONS; KINETIC EQUATIONS; MOLECULAR CLUSTERS; MONOMERS; NUCLEATION; RELAXATION; VAPORS