Vapour and air bubble collapse analysis in viscous compressible water

Vapour and air bubble collapse analysis in viscous compressible water

Authors

  • Gil Bazanini Universidade Estadual de Santa Catarina

DOI:

https://doi.org/10.5433/1679-0375.2001v22n1p13

Keywords:

Cavitation, bubbles

Abstract

Numerical simulations of the collapse of bubbles (or cavities) are shown, using the finite difference method, taking into account the compressibility of the liquid, expected to occur in the final stages of the collapse process. Results are compared with experimental and theoretical data for incompressible liquids, to see the influence of the compressibility of the water in the bubble collapse. Pressure fields values are calculated in an area of 800 x 800 mm, for the case of one bubble under the hypothesis of spherical symmetry. Results are shown as radius versus time curves for the collapse (to compare collapse times), and pressure curves in the plane, for pressure fields. Such calculations are new because of their general point of view, since the existing works do not take into account the existence of vapour in the bubble, neither show the pressure fields seen here. It is also expected to see the influence of the compressibility of the water in the collapse time, and in the pressure field, when comparing pressure values.

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Author Biography

Gil Bazanini, Universidade Estadual de Santa Catarina

Dr. in Mechanical Engineering. Department of Mechanical Engineering. Santa Catarina State University. RuaTenente Antonio João s/n. Campus Universitário-FEJ/CCT 89223-100, Joinville, SC, Brazil.

Published

2004-07-15

How to Cite

Bazanini, G. (2004). Vapour and air bubble collapse analysis in viscous compressible water. Semina: Ciências Exatas E Tecnológicas, 22(1), 13–18. https://doi.org/10.5433/1679-0375.2001v22n1p13

Issue

Section

Original Article

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