Numerical investigation of three-dimensional bubble dynamics

被引：0

作者：

K. E. Afanasiev

I. V. Grigorieva

机构：

[1] Kemerovo State University,

来源：

Journal of Engineering Mathematics | 2006年 / 55卷

关键词：

bubble; bubble oscillation; cumulative effect; impact jet;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

This work is devoted to a numerical investigation of three-dimensional gas-vapor bubble dynamics. Bubble oscillations in ambient unbounded fluid and interaction of the bubble with different inclined solid walls are investigated numerically. The fluid is assumed inviscid and incompressible and the flow is irrotational. The boundary-integral method is used as an instrument of numerical investigation. Much attention is paid to the description of a numerical algorithm. Its conservative character is verified by control over conservation of energy. Certain characteristics of the impact jet, which often emerges during the bubble-collapse phase, are investigated numerically. These are the jet height and the direction and velocity of the jet peak. The jet-penetration coefficient is described to estimate the erosion effect on the wall. Dimensional values for different types of bubbles, cavitation bubbles and bubbles formed as a result of different charge explosions are determined

引用

页码：65 / 80

页数：15

共 35 条

[1]

Korobkin A.A.(1997)Asymptotic theory of liquid-solid impact Phil. Trans. R. Soc. London A335 507-522

[2]

Best J.P.(1992)A numerical investigation of non-spherical rebounding bubbles J. Fluid Mech. 245 137-154

[3]

Kucera A.(1966)The collapse of cavitation bubbles and the pressures thereby produced against solid wall Phil. Trans. R. Soc. Lond. A260 221-240

[4]

Benjamin T.B.(1998)The evolution of a gas bubble near an inclined wall Theoret. Comput. Fluid Dyn. 12 29-51

[5]

Ellis A.T.(1976)On the scheme of a cavitation bubble collapse near a wall and the impact jet formation Papers of the AS USSR N N1227 63-66

[6]

Wang Q.X.(2004)Numerical simulation of violent bubble motion Phys. Fluids 16 1610-1619

[7]

Voinov O.V.(1998)The art, craft and science of modelling jet impact in a collapsing cavitational bubble Appl. Sci. Res. 58 77-90

[8]

Voinov V.V.(1997)Computations of violent surface motions: Comparisons with theory and experiment Phil. Trans. R. Soc. London A355 649-663

[9]

Wang Q.X.(1997)Axisymmetric free boundary problems J. Fluid Mech. 341 269-294

[10]

Blake J.R.(1999)Experimental and numerical comparisons of the break up of a large bubble Experiments in Fluids. Springer-Verlag, Heidelberg 26 524-534

← 1 2 3 4 →