Experiments with constrained chimney-plume
flows in the system ammonium chloride–water:
comparison with the unconstrained case
Keyword(s):
Thermo-solutal chimney-plume flows from a solidifying dendritic mushy region have been promoted in thin-walled glass tubes of internal radii from 0.3 mm–2.0 mm. Flow rates, liquid compositions and temperatures were measured as functions of the depth of immersion of capillary tubes in the advancing mushy region. The results demonstrate competition between buoyancy pressures and the restrictions of liquid recirculation within the dendritic array and have been analysed to provide permeability data for the mushy region at high liquid fractions. These data have been used to make some assessments of channel/plume dimensions for naturally occurring, unconstrained flows in the same system.
1986 ◽
Vol 90
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pp. 1860-1863
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1991 ◽
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pp. 1703-1710
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2018 ◽
Vol 139
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2018 ◽
Vol 63
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2020 ◽
Vol 28
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pp. 2050033
2012 ◽
Vol 161
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pp. 21-25
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2010 ◽
Vol 49
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pp. 131-145
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1994 ◽
Vol 39
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pp. 195-200
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