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Steady-state solidification of aqueous ammonium chloride

Abstract:

We report on a series of experiments in which a Hele-Shaw cell containing aqueous solutions of NH4Cl was translated at prescribed rates through a steady temperature gradient. The salt formed the primary solid phase of a mushy layer as the solution solidified, with the salt-depleted residual fluid driving buoyancy-driven convection and the development of chimneys in the mushy layer. Depending on the operating conditions, several morphological transitions occurred. A regime diagram is presented...

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Publication status:
Published

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Publisher copy:
10.1017/S0022112008000219

Authors


Peppin, SSL More by this author
Huppert, HE More by this author
Worster, MG More by this author
Journal:
JOURNAL OF FLUID MECHANICS
Volume:
599
Pages:
465-476
Publication date:
2008-03-25
DOI:
EISSN:
1469-7645
ISSN:
0022-1120
URN:
uuid:31ffe2ed-6e49-4c1e-9bff-a47b0fbe3a45
Source identifiers:
189875
Local pid:
pubs:189875
Language:
English

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