Volume 99, Number 1, July 2012
|Number of page(s)||6|
|Section||Atomic, Molecular and Optical Physics|
|Published online||16 July 2012|
Coalescence of clusters or microparticles in buffer gas
Joint Institute for High Temperatures of RAS - 13, bldg. 2 Izhorskaya str., Moscow, 125412, Russia
Received: 26 April 2012
Accepted: 19 June 2012
The coalescence, or the Ostwald ripening, process proceeds under equilibrium between clusters or microparticles and the parent vapor located in a buffer gas, so that the equilibrium results from processes of cluster evaporation and attachment of free molecules to a cluster. A slow cluster growth takes place because this equilibrium is not fulfilled exactly for clusters of different sizes. It is shown that the coalescence process slows down due to a difference between the cluster temperature and the buffer gas temperature near the cluster, and a decrease in the coalescence rate due to this effect is evaluated. The results are applied to the analysis of the growth of water aerosols located in atmospheric air of cumulus clouds where a time of coalescence aerosol growth differs from a time of establishment the aerosol-vapor equilibrium by 4–5 orders of magnitude.
PACS: 36.40.-c – Atomic and molecular clusters / 64.70.F- – Liquid-vapor transitions / 36.40.Sx – Diffusion and dynamics of clusters
© EPLA, 2012
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.