Abstract
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.
Publisher
Cambridge University Press (CUP)
Subject
Mechanical Engineering,Mechanics of Materials,Condensed Matter Physics
Cited by
6 articles.
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