Solidification of a Supercooled Liquid in a Narrow Channel | Zendy

Mohsen Sabouri-Ghomi | Zendy; Nikolas Provatas | Zendy; Martin Grant | Zendy

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Solidification of a Supercooled Liquid in a Narrow Channel

Author(s) -

Mohsen Sabouri-Ghomi,

Nikolas Provatas,

Martin Grant

Publication year - 2001

Publication title -

physical review letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 3.688

H-Index - 673

eISSN - 1079-7114

pISSN - 0031-9007

DOI - 10.1103/physrevlett.86.5084

Subject(s) - supercooling , steady state (chemistry) , materials science , channel (broadcasting) , phase (matter) , mechanics , field (mathematics) , condensed matter physics , thermodynamics , physics , computer science , chemistry , computer network , mathematics , quantum mechanics , pure mathematics

We simulate solidification in a narrow channel through the use of a phase-field model with an adaptive grid. In different regimes, we find that the solid can grow in fingerlike steady-state shapes, or become unstable, exhibiting unsteady growth. At low melt undercoolings, we find good agreement between our results, theoretical predictions, and experiment. For high undercoolings, we report evidence for a new stable steady-state finger shape which exists in experimentally accessible ranges for typical materials.

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