title: The temperature and size distribution of large water clusters from a non-equilibrium model.
abstract: 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 (H2O)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.affiliation: Gimel, Inc., San Jose, California 95124, USA.
authors.forename: N
authors.initials: N
authors.lastname: Gimelshein
authors.affiliation: University of Southern California, Los Angeles, California 90089, USA.
authors.forename: S
authors.initials: S
authors.lastname: Gimelshein
authors.affiliation: Institut für Physikalische Chemie, Universität Göttingen, Tammanstr. 6, D-37077 Göttingen, Germany.
authors.forename: C C
authors.initials: CC
authors.lastname: Pradzynski
authors.affiliation: Institut für Physikalische Chemie, Universität Göttingen, Tammanstr. 6, D-37077 Göttingen, Germany.
authors.forename: T
authors.initials: T
authors.lastname: Zeuch
authors.affiliation: Max-Planck-Institut für Dynamik und Selbstorganisation, Am Faßberg 17, D-37077 Göttingen, Germany.
authors.forename: U
authors.initials: U
authors.lastname: Buck