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Frazil dynamics and precipitation in a water column with depth-dependent supercooling

Holland, P. R. and Feltham, D. L. (2005) Frazil dynamics and precipitation in a water column with depth-dependent supercooling. Journal Of Fluid Mechanics, 530. pp. 101-124. ISSN 0022-1120

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To link to this item DOI: 10.1017/S002211200400285X


A morphological instability of a mushy layer due to a forced flow in the melt is analysed. The instability is caused by flow induced in the mushy layer by Bernoulli suction at the crests of a sinusoidally perturbed mush–melt interface. The flow in the mushy layer advects heat away from crests which promotes solidification. Two linear stability analyses are presented: the fundamental mechanism for instability is elucidated by considering the case of uniform flow of an inviscid melt; a more complete analysis is then presented for the case of a parallel shear flow of a viscous melt. The novel instability mechanism we analyse here is contrasted with that investigated by Gilpin et al. (1980) and is found to be more potent for the case of newly forming sea ice.

Item Type:Article
Divisions:No Reading authors. Back catalogue items
Science > School of Mathematical, Physical and Computational Sciences > Department of Meteorology
ID Code:35057
Publisher:Cambridge University Press

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