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J. Fluid Mech. (2007), vol. 570, pp. 6977. c 2007 Cambridge University Press doi:10.1017/S0022112006003028 Printed in the United Kingdom
 

Summary: J. Fluid Mech. (2007), vol. 570, pp. 69­77. c 2007 Cambridge University Press
doi:10.1017/S0022112006003028 Printed in the United Kingdom
69
Steady-state mushy layers: experiments
and theory
By S. S. L. PEPPIN, P. AUSSILLOUS,
HERBERT E. HUPPERT AND M. GRAE WORSTER
Institute of Theoretical Geophysics, Department of Applied Mathematics and Theoretical Physics,
University of Cambridge, Wilberforce Road, Cambridge CB3 0WA, UK
(Received 16 August 2006 and in revised form 15 September 2006)
A new facility has been developed to investigate the directional solidification of
transparent aqueous solutions forming mushy layers in a quasi-two-dimensional
system. Experiments have been conducted on NaCl­H2O solutions by translating
a Hele-Shaw cell at prescribed rates between fixed heat exchangers providing
a temperature gradient of approximately 1
C mm-1
. The mush­liquid interface
remained planar at all freezing velocities larger than 8 µm s-1
, while steepling occurred
at lower velocities. No significant undercooling of the mush­liquid interface was

  

Source: Aussillous, Pascale - Polytech Marseille
Huppert, Herbert - Institute of Theoretical Geophysics, Department of Applied Mathematics and Theoretical Physics, University of Cambridge
Worster, M. Grae - Institute of Theoretical Geophysics, Department of Applied Mathematics and Theoretical Physics, University of Cambridge

 

Collections: Engineering; Geosciences; Physics