skip to main content

SciTech ConnectSciTech Connect

Title: The temperature and size distribution of large water clusters from a non-equilibrium model

A hybrid Lagrangian-Eulerian approach is used to examine the properties of water clusters formed in neon-water vapor mixtures expanding through microscale conical nozzles. Experimental size distributions were reliably determined by the sodium doping technique in a molecular beam machine. The comparison of computed size distributions and experimental data shows satisfactory agreement, especially for (H{sub 2}O){sub n} clusters with n larger than 50. Thus validated simulations provide size selected cluster temperature profiles in and outside the nozzle. This information is used for an in-depth analysis of the crystallization and water cluster aggregation dynamics of recently reported supersonic jet expansion experiments.
Authors:
 [1] ;  [2] ; ;  [3] ;  [4]
  1. Gimel, Inc., San Jose, California 95124 (United States)
  2. University of Southern California, Los Angeles, California 90089 (United States)
  3. Institut für Physikalische Chemie, Universität Göttingen, Tammanstr. 6, D-37077 Göttingen (Germany)
  4. Max-Planck-Institut für Dynamik und Selbstorganisation, Am Faßberg 17, D-37077 Göttingen (Germany)
Publication Date:
OSTI Identifier:
22490840
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Chemical Physics; Journal Volume: 142; Journal Issue: 24; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; AGGLOMERATION; COMPARATIVE EVALUATIONS; CRYSTALLIZATION; DISTRIBUTION; EXPANSION; EXPERIMENTAL DATA; LAGRANGIAN FUNCTION; MIXTURES; MOLECULAR BEAMS; NEON; SIMULATION; SODIUM; WATER; WATER VAPOR