Influence of subharmonic resonance on bubble driven by intensive sound during stable cavitation
The relationships between amplitude and frequency are numerically analyzed by the use of SPECTRA PLUS software. The method is tested analyzing forced oscillations of cavitation bubbles excited by ultrasonic standing waves at different pressure amplitudes, showing characteristic behaviour of nonlinear dynamical systems; frequency spectra are obtained, stability analysis is performed. It is important to note that subharmonic behaviour of the volume mode of the bubble prior to the instabilities due to shape modes is observed. If the value of pressure amplitudes is further increased, surface instabilities and deformations mat lead to the destruction of the bubble can be clearly observed. This evidence may suggest that the subharmonic behaviour leads to chaos in ultrasonic cavitation.
Feng-de Zong Zhi-Hang Zhang Yang Yang Liu-de Zheng
Department of Physics, College of Mathematics, Physics and Information Engineering,Zhejiang Normal University, Jinhua 321004, China
国际会议
The 5th International Conference on Nonlinear Mechanics(第五届国际非线性力学会议)
上海
英文
1483-1486
2007-06-11（万方平台首次上网日期，不代表论文的发表时间）