FENG Feilong1, SHEN Zhuangzhi1*, SHEN Jianzhong2
(1 College of Physics and Information Technology, Shaanxi Normal University, Shaanxi Key Laboratory of Ultrasonics,Xi′an 710119, Shaanxi, China;2 Institute of Acoustics,Chinese Academy of Sciences, Beijing 100190, China)
Abstract:
Considering the liquid is viscosity, surface tension, uncompressibility, motion characteristics of microbubble contrast agent with shell in acoustic field are numerically investigated by regarding blood-like as a work medium. The effect of acoustic frequency, acoustic pressure, initial inner radius of agent, shell thickness and viscosity coefficient of the blood-like liquid on microbubble motion state are analysed. The research results show that the motion of microbubble only in cycle 2,acoustic cavitation is safety.
KeyWords:
ultrasound microbubble contrast agent; microbubble dynamics; chaos; bifurcation
