气泡
分散性
半径
机械
空化
粘弹性
微气泡
材料科学
振幅
粒径
物理
光学
声学
超声波
化学
复合材料
计算机科学
计算机安全
物理化学
高分子化学
作者
Qingqin Zou,Xianhua Zhong,Bingyu Zhang,An Gao,Xia Wang,Zhangyong Li,Dui Qin
出处
期刊:Ultrasonics
[Elsevier]
日期:2023-09-01
卷期号:134: 107089-107089
被引量:2
标识
DOI:10.1016/j.ultras.2023.107089
摘要
This study seeks to explore the bubble pulsation characteristics in multi-bubble environment with a special focus on the influences of the size polydispersity and the two-dimensional structure of bubbles. Three representative configurations of three interacting bubbles are formed by setting the initial radii of cavitation bubbles and inter-bubble distances appropriately, then the pulsation characteristics of a small bubble are investigated and compared by the bifurcation analysis. The results illustrate that the bubble size polydispersity and two-dimensional structure would greatly affect the bubble pulsations (i.e., the amplitude and nonlinearity of pulsations). Furthermore, the effects of two-dimensional structure are strong at a small inter-bubble distance of the large and small bubbles while the bubble size polydispersity always significantly affects the bubble pulsations for all cases. Moreover, the influences of both bubble size polydispersity and two-dimensional structure can be enhanced as the acoustic pressure increases, which can also become stronger when the large bubble is located at the same side as the small bubble and the initial radius of large bubble increases. Additionally, the effects would also be increased when the tissue viscoelasticity varies within a certain range. The present findings shed new light on the dynamics of multiple polydisperse microbubbles in viscoelastic tissues, potentially contributing to an optimization of their applications with ultrasound excitation.
科研通智能强力驱动
Strongly Powered by AbleSci AI