Hostname: page-component-89b8bd64d-x2lbr Total loading time: 0 Render date: 2026-05-11T10:34:16.999Z Has data issue: false hasContentIssue false

Air entrainment during impact of droplets on liquid surfaces

Published online by Cambridge University Press:  06 June 2013

Tuan Tran*
Affiliation:
Physics of Fluids Group, Faculty of Science and Technology, University of Twente, 7500 AE Enschede, The Netherlands
Hélène de Maleprade
Affiliation:
Département de Mécanique, École Polytechnique, 91128 Palaiseau Cedex, France
Chao Sun*
Affiliation:
Physics of Fluids Group, Faculty of Science and Technology, University of Twente, 7500 AE Enschede, The Netherlands
Detlef Lohse*
Affiliation:
Physics of Fluids Group, Faculty of Science and Technology, University of Twente, 7500 AE Enschede, The Netherlands
*
Email addresses for correspondence: t.tran@utwente.nl, c.sun@utwente.nl, d.lohse@utwente.nl
Email addresses for correspondence: t.tran@utwente.nl, c.sun@utwente.nl, d.lohse@utwente.nl
Email addresses for correspondence: t.tran@utwente.nl, c.sun@utwente.nl, d.lohse@utwente.nl

Abstract

We study drop impact on a deep pool of the same fluid, with an emphasis on the air layer trapped under the droplets from its formation to its rupture. The penetration velocity of the air layer at a very short time scale prior to its rupture is shown, using an energy argument and experimental verification, to be one-half of the impact velocity. We then deduce the dependence of the rupture position on the liquid viscosity and the impact velocity. We show that the volume of the resulting air bubbles can be related to both those resulting from droplets impacting on solid surfaces and those resulting from rigid spheres impacting on liquid surfaces.

Information

Type
Rapids
Copyright
©2013 Cambridge University Press 

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

Article purchase

Temporarily unavailable