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Unsteady rise of a bubble in a viscous fluid at small Reynolds numbers

Research paper by V. A. Arkhipov, I. M. Vasenin, A. S. Tkachenko, A. S. Usanina

Indexed on: 26 Feb '15Published on: 26 Feb '15Published in: Fluid Dynamics



Abstract

A bubble rising from the state of rest in a viscous incompressible fluid is considered. A formula for the Basset force acting on the bubble in a viscous fluid is obtained, which differs by a multiplier from the Basset force for a solid particle. The problem of unsteady rise of a bubble is solved analytically. The bubble rise is also studied experimentally and the experimental data are compared with the theoretical results.