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Numerical modeling of solidification and convection in a viscous pure binary eutectic systemThe solidification and convection of the pure binary eutectic silicate system diopside-anorthite (Di-An) is numerically modeled. A mass-weighted enthalpy of fusion is used to account for the second solid phase (An) which crystallizes at the solidus temperature. Variable under-relaxation is used to aid convergence of the momentum equations in the implementation of the SIMPLER algorithm used to solve the two-dimensional continuum conservation equations. Numerical experiments of the solidification of Di80 melt show that a large temperature drop occurs across the solid and mush regions which decreases convective vigor in the liquid. Interesting compositional segregation patterns are produced during the solidification of Di80.
Document ID
19910063115
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Oldenburg, Curtis M.
(California Univ. Santa Barbara, CA, United States)
Spera, Frank J.
(California, University Santa Barbara, United States)
Date Acquired
August 14, 2013
Publication Date
August 1, 1991
Publication Information
Publication: International Journal of Heat and Mass Transfer
Volume: 34
ISSN: 0017-9310
Subject Category
Computer Programming And Software
Accession Number
91A47738
Funding Number(s)
CONTRACT_GRANT: NSF EAR-88-16103
CONTRACT_GRANT: NAGW-1452
Distribution Limits
Public
Copyright
Other

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