物理学进展2026，Vol.46Issue(2)：98-105,8.DOI:10.13725/j.cnki.pip.2026.02.003
非球形纳米空泡冲击溃灭的分子动力学研究
Molecular dynamics study of shock-induced collapse of non-spherical nanobubbles
摘要
Abstract
This study employs molecular dynamics methods to investigate the dynamic process of collapse of near-ellipsoidal non-spherical cavitation bubbles induced by shock waves.On the one hand,the collapse process of non-spherical bubbles is similar to that of spherical bubbles,both characterized by compression and rupture stages,accompanied by the generation of high-speed microjets.On the other hand,due to the combined effects of spatial dimensions and surface tension,the initial angle between the major axis of the non-spherical bubble and the shock wave systematically influences the bubble's collapse time,jet velocity,and jet angle.It was found that the collapse time and jet velocity decreased as the initial angle increased,while the jet angle reached its maximum when the initial angle was 45°.The universality of this conclusion was verified using bubbles of different sizes.关键词
非球形纳米空泡/冲击溃灭/分子动力学Key words
non-spherical nanobubbles/shock-induced collapse/molecular dynamics分类
信息技术与安全科学引用本文复制引用
李成伟,向圆圆,姚红兵..非球形纳米空泡冲击溃灭的分子动力学研究[J].物理学进展,2026,46(2):98-105,8.基金项目
感谢国家自然科学基金项目(No.22075068)、国家重点研发计划(No.2022YFB3404800)的资助. （No.22075068）
