Comparative analysis of condensation models within DSMC

Journal Article · Tue Dec 09 00:00:00 EST 2014 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.4902585· OSTI ID:22390559

Bykov, Nikolay Y. ^[1]; Gorbachev, Yuriy E. ^[2]

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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)

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.

• OSTI ID: 22390559
• Journal Information: AIP Conference Proceedings, Vol. 1628, 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); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ATOMS
COMPUTERIZED SIMULATION
COPPER
DISTRIBUTION FUNCTIONS
KINETIC EQUATIONS
MOLECULAR CLUSTERS
MONOMERS
NUCLEATION
RELAXATION
VAPORS