摘要
以类血液液体为工作介质,在考虑带壳微泡造影剂的液体壳和类血液液体的黏度、表面张力及不可压缩性的情况下,对声场中微泡造影剂的动力学行为特性进行了数值研究.分析了频率、声压、初始内半径、壳壁厚度及类血液黏度对微泡运动状态的影响.研究表明微泡的运动状态只有处于周期2时,声空化才具有安全性.
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.
出处
《陕西师范大学学报（自然科学版）》
CAS
CSCD
北大核心
2014年第4期22-26,共5页
Journal of Shaanxi Normal University：Natural Science Edition
基金
国家自然科学基金资助项目(11174191)
陕西省自然科学基金资助项目(2011JM1002)
关键词
超声微泡造影剂
微泡动力学
混沌
分叉
ultrasound microbubble contrast agent
microbubble dynamics
chaos
bifurcation
