This article is cited in 4 papers

Shock impact of a cavitation bubble on an elastic body

A. A. Aganin^a, M. A. Ilgamov^b, V. G. Malakhov^a, T. F. Khalitova^a, N. A. Khismatullina<sup>a

a</sup> Research Institute of Mechanics and Machinery of Kazan Scientific Center of the Russian Academy of Sciences
^b Institute of Mechanics, Ufa Centre of the Russian Academy of Sciences

Abstract: Axially symmetric impact of a high-speed jet arising on the surface of a bubble during its collapse near a surface of a body is studied. The jet is directed orthogonally to the plane surface of the body. The body is modelled by elastic semi-space, and the jet is modelled by a cylindrical liquid column. The waves in the liquid are described by the linear acoustics; the waves in semi-space are described by the linearly elastic body. Both the case when the bubble is in direct contact with the surface of the body and the case when there is an intermediate liquid layer between them are considered. The instant the jet touches upon the surface of the body or the intermediate liquid layer is taken as the initial one. Results of computation of shock impact of a water jet on a steel body for various thicknesses of the intermediate layer are presented.

Keywords: cavitation destruction, non-spherical bubble dynamics, collapse of a bubble near a wall, interaction of a bubble with a wall.

UDC: 532.5.296+534.12

Received: 05.04.2010