Molecular dynamics simulation of ice growth from supercooled pure water and from salt solution

M. A. Carignano*, E. Baskaran, P. B. Shepson, I. Szleifer

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

19 Scopus citations

Abstract

The kinetics of ice growth on the prismatic and basal planes is studied by molecular dynamics simulations. The time evolution of two systems has been investigated. In one a slab of ice is initially in contact with supercooled water, while in the second the ice is in contact with a supercooled salt solution. The simulations were done at a temperature below the eutectic temperature, and complete solidification is observed. The total freezing time is longer in the systems with ions than in the systems with pure water. The final state for the salt systems always shows the formation of ion clusters. For the ionic system growing on the prismatic plane, an intermediate metastable state is observed before total solidification. The duration of this metastable state depends on the ability of the system to get all the ions participating in cluster formation. The simulations enable understanding of the mechanisms for ice formation under different solution conditions.

Original languageEnglish (US)
Pages (from-to)113-117
Number of pages5
JournalAnnals of Glaciology
Volume44
DOIs
StatePublished - 2006

ASJC Scopus subject areas

  • Earth-Surface Processes

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