摘要
从气泡方程和定向扩散理论出发 ,利用数值方法求解了基波超声和谐波叠加加强声空化的最佳条件。结果表明①基波和二次谐波叠加的最佳条件是两者的相位差 φ =π、振幅比a2 /a1=1.0 ;②基波和三次谐波叠加的最佳条件是两者的相位差 φ =0、振幅比a2 /a1=1.0 ,其中结果①与SU .memura等人的实验结果相符[1] 。
Based on the bubbles equation and the theory of rectified diffusion ,this paper has soluted the optimum conditions of enhancement of cavitation by harmonic ultrasound superimposition using numerical method.The results indicate:(1) the optimum conditions for the second harmonic are the phase difference φ=π,and the ratio of the amplitudes a 2/a 1 =1.0;and(2) the optimum conditions for the third harmonic are the phase difference φ=0,and the ratio of the amplitudes a 2/a 1 =1.0.The first result is in agreement with the experimental result of reference 1. [
出处
《西安工程学院学报》
2000年第3期66-68,共3页
Journal of Xi'an Engineering University
基金
国家自然科学基金资助项目! ( 198740 42 )
关键词
基波
谐波
叠加
声空化
最佳条件
超声波
superimposition of harmonic ultrasounds
sound cavitation
optimum conditions
numerical method
