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Coupled convective instabilities at crystal-melt interfacesThe stability of the parallel flow between a vertical crystal-melt interface and a vertical wall held at a temperature above the melting point of the crystal is analyzed for Prandtl numbers, P, ranging from 0.01 to 100. Three modes of instability occur: (1) a buoyant mode, (2) a shear mode, and (3) a coupled crystal-melt mode. The buoyant and shear modes are similar to those that occur for flow between two vertical rigid walls held at different temperatures. For Prandtl numbers greater than approximately two, the coupled crystal-melt mode occurs at a lower Grashof number than the other two modes. Specific results are given for succinonitrile (P = 22.8) and lead (P = 0.0225). These calculations and similar calculations for a cylindrical geometry were motivated by and are in general agreement with recent experiments on succinonitrile.
Document ID
19870066336
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Coriell, S. R.
(National Bureau of Standards Washington, DC, United States)
Mcfadden, G. B.
(National Bureau of Standards Washington, DC, United States)
Boisvert, R. F.
(NBS Washington, DC, United States)
Glicksman, M. E.
(National Bureau of Standards Washington, DC, United States)
Fang, Q. T.
(Rensselaer Polytechnic Institute, Troy, NY, United States)
Date Acquired
August 13, 2013
Publication Date
January 1, 1984
Publication Information
Publication: Journal of Crystal Growth
Volume: 66
ISSN: 0022-0248
Subject Category
Fluid Mechanics And Heat Transfer
Accession Number
87A53610
Distribution Limits
Public
Copyright
Other

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