Skimming impacts and rebounds on shallow liquid layers

The evolution of the combined solid-fluid motion when a solid body undergoes a skimming impact with (and rebounds from) a shallow liquid layer is investigated. A model is derived coupling the motion of the body to the fluid dynamics of the liquid layer. This predicts that the lift on the body induce...

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Veröffentlicht in:Proceedings of the Royal Society. A, Mathematical, physical, and engineering sciences Mathematical, physical, and engineering sciences, 2011-03, Vol.467 (2127), p.653-674
Hauptverfasser: Hicks, Peter D., Smith, Frank T.
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Smith, Frank T.
description The evolution of the combined solid-fluid motion when a solid body undergoes a skimming impact with (and rebounds from) a shallow liquid layer is investigated. A model is derived coupling the motion of the body to the fluid dynamics of the liquid layer. This predicts that the lift on the body induced by the pressure in the liquid layer is sufficient to entirely retard its incident downward motion before causing the body to rise out of the liquid. Water exit is predicted at a finite scaled time. Analysis for the small-time behaviour immediately after touchdown, and also as water exit is approached, shows close agreement with numerical prediction.
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source JSTOR Mathematics & Statistics; JSTOR Archive Collection A-Z Listing; Alma/SFX Local Collection
subjects Angular velocity
Body regions
Center of mass
Deep water
Fluid/solid Interactions
Liquids
Momentum
Oblique Impact
Shallow Liquid Layer
Skimming
Solids
Trailing edges
Velocity
Water Exit
Water pressure
title Skimming impacts and rebounds on shallow liquid layers
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