华中科技大学学报（自然科学版）2024，Vol.52Issue(4)：42-48,7.DOI:10.13245/j.hust.240630
基于格子Boltzmann方法的空泡溃灭过程模拟
Simulation of cavitation collapse process based on lattice Boltzmann method
摘要
Abstract
To solve the problem of three-dimensional bubble collapse with free boundary condition,the lattice Boltzmann method,combined with pseudo potential multiphase flow model and Carnahan-Starling(C-S)equation of state,was employed as the flow field core solver.Simulation of three-dimensional bubble collapse process was performed at different temperatures and initial collapse radius under constant pressure boundary conditions.The density and pressure contour diagram of the flow field in the process of cavitation collapse were given by simulation,and the relationship between the three-dimensional cavitation collapse time and the radius was quantitatively analyzed.Results show that the initial radius of cavitation is linearly correlated with the total collapse time under constant pressure boundary,and the collapse process of cavitation with different temperatures and initial radius is similar.Under the same temperature condition,the cavitation collapse speed increases with time,and the larger the initial cavity radius,the later the maximum cavity collapse speed occurs.Under the same radius condition,the larger the temperature ratio,the later the maximum cavitation collapse speed appears.关键词
多相流/数值模拟/空化/格子Boltzmann方法/伪势模型Key words
multiphase flow/numerical simulation/cavitation/lattice Boltzmann method/pesudo-potential method分类
数理科学引用本文复制引用
张恒,胡海豹..基于格子Boltzmann方法的空泡溃灭过程模拟[J].华中科技大学学报（自然科学版）,2024,52(4):42-48,7.基金项目
国家自然科学基金资助项目(52071272) （52071272）
国家自然科学基金青年基金资助项目(12102358,52201382) （12102358,52201382）
深圳市科创委基础研究资助项目(JCYJ20210324122201004) （JCYJ20210324122201004）
西北工业大学博士创新基金资助项目(CX2022027,CX2023006). （CX2022027,CX2023006）
