Water entry of spheres into a rotating liquid
Open Access
- 4 February 2021
- journal article
- research article
- Published by Cambridge University Press (CUP) in Journal of Fluid Mechanics
Abstract
The transient cavity dynamics during water entry of a heavy, non-rotating sphere impacting a rotating pool of liquid is studied experimentally, numerically and theoretically. We show that the pool rotation advances the transition of the cavity type – from deep seal to surface seal – marked by a reduction in the transitional Froude number. The role of the dimensionless rotational number . Our findings reveal that the effects of a rotating background liquid on the water entry can be traced back to the subtle differences in the initial stage splash and the near-surface cavity dynamics.Keywords
This publication has 44 references indexed in Scilit:
- Water entry of decelerating spheres simulations using improved ISPH methodJournal of Hydrodynamics, 2018
- The water entry of decelerating spheresPhysics of Fluids, 2010
- Pinch-off singularities in rotating Hele-Shaw flows at high viscosity contrastPhysical Review E, 2009
- Controlled impact of a disk on a water surface: cavity dynamicsJournal of Fluid Mechanics, 2009
- Bubble Pinch-Off in a Rotating FlowPhysical Review Letters, 2009
- Water entry of small hydrophobic spheresJournal of Fluid Mechanics, 2009
- Dynamics of transient cavitiesJournal of Fluid Mechanics, 2007
- Theory of the Collapsing Axisymmetric CavityPhysical Review Letters, 2007
- Making a splash with water repellencyNature Physics, 2007
- Giant Bubble Pinch-OffPhysical Review Letters, 2006