On ice-induced instability in free-surface flows
نویسندگان
چکیده
منابع مشابه
On ice-induced instability in free-surface flows
The problem of stability of a water-coated ice layer is investigated for a free-surface flow of a thin water film down an inclined plane. An asymptotic (double-deck) theory is developed for a flow with large Reynolds and Froude numbers which is then used to investigate linear two-dimensional, three-dimensional and nonlinear two-dimensional stability characteristics. A new mode of upstream-propa...
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Viscoelasticity can dramatically exacerbate free surface flow instabilities. It is shown here that this destabilization arises, at least in part, from the combination of large tangential tension and curvature along a concave free surface. Tension and curvature generically lead to an unstable stress gradient at the free surface; a perturbation that locally thickens a fluid layer leads to a local...
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ژورنال
عنوان ژورنال: Journal of Fluid Mechanics
سال: 2007
ISSN: 0022-1120,1469-7645
DOI: 10.1017/s0022112006004459