Eur. Phys. J. B 29, 503-509 (2002)
https://doi.org/10.1140/epjb/e2002-00332-5

Induced bubble shape oscillations and their impact on the rise velocity

Department of Applied Physics and J. M. Burgers Centre for Fluid Dynamics, University of Twente, 7500 AE Enschede, The Netherlands

Corresponding author: ^a lohse@tn.utwente.nl

Received: 9 April 2002
Revised: 11 July 2002
Published online: 14 October 2002

Abstract

When a 2–4 mm diameter bubble rising with constant velocity hits a thin wire, bubble shape oscillations can be induced. As a consequence also the bubble rise velocity strongly oscillates. With the help of a force balance we show that these velocity oscillations are an added-mass effect.