Modelling of water clusters formation processes in the inner atmosphere of comets

International Conference on Dynamics of Systems on the Nanoscale 2012

Bykov, N.Y.^1 ; Leshchev, D.V.^1

Center for Advanced Studies, St. Petersburg State Polytechnical University, Politechnicheskaja, 29, 195251 St. Petersburg, Russia^1

关键词: Binary collisions;    Condensation process;    Dimer formation;    Direct simulation Monte Carlo method;    Energy exchanges;    Formation process;    Initial process;    Internal state;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/438/1/012008/pdf
DOI  :  10.1088/1742-6596/438/1/012008

来源: IOP

【 摘 要 】

The model of water clusters formation has been developed for the direct simulation Monte Carlo method. The model describes hierarchy of reactions which lead to growth and decay of water clusters including initial processes of dimer formation by triple and binary collisions of water molecules. The algorithm takes into account internal state of clusters and energy exchange processes accompanying clusterization kinetics. The model was applied for the research of condensation process in the rarefied flows of water molecules typical for the inner atmospheres of comets.