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Maximal potential energy transport: a variational principle for solidification problems.

Abstract:

We analyze numerically the mechanisms controlling the spacing of chimneys--channels devoid of solid--in two-dimensional mushy layers formed by solidifying a binary alloy. Chimneys are the principal conduits through which buoyancy effects material transport out of the mushy layer and into the liquid from which it formed. Experiments show a coarsening of chimney spacing; we pursue the hypothesis that the spacing adjusts to optimize material transport and hence maximize the rate of removal of po...

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Publication status:
Published

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Authors


Wettlaufer, JS More by this author
Orszag, SA More by this author
Journal:
Physical review letters
Volume:
105
Issue:
25
Pages:
254502
Publication date:
2010-12-05
DOI:
EISSN:
1079-7114
ISSN:
0031-9007
URN:
uuid:0dab7fd8-dd45-4f89-a4d2-c7d396688256
Source identifiers:
349466
Local pid:
pubs:349466
Language:
English

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