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Lubricated viscous gravity currents
(CUPJournal of Fluid Mechanics, 2015-02-10)
We present a theoretical and experimental study of viscous gravity currents lubricated by another viscous fluid from below. We use lubrication theory to model both layers as Newtonian fluids spreading under their own weight ...
Gravity current propagation up a valley
(Cambridge University PressJournal of Fluid Mechanics, 2015-01-10)
The advance of the front of a dense gravity current propagating in a rectangular channel and V-shaped valley both horizontally and up a low slope is examined through theory, full-depth lock-release laboratory experiments ...