基于Fluent的VOF模型开展气泡动态特性数值模拟，得到气泡脉动周期、流场中测点处压力及质点速度，并分析了气泡初始内压及初始半径对气泡动态特性的影响规律。结果表明，气泡初始内压及初始半径越大，气泡最大膨胀半径越大，脉动周期越长，流场中测点处压力峰值及质点速度峰值越大。水下爆炸气泡的初始状态直接影响其动态特性，数值模拟结果对水下爆炸气泡动态特性研究具有参考意义。
The dynamic characteristic of the bubble is simulated with the VOF model of Fluent, the pulsation period of the bubble and the pressure and particle velocity of the measuring point in the flow field are obtained. The effects of the initial inner pressure and radius of the bubble on its dynamic characteristic are analyzed, the results indicate that the initial internal pressure and radius of the bubble is greater, the maximum radius of the bubble is bigger, the pulsation period is longer, and the peak pressure and the maximum particle velocity of the measuring point in the flow field are greater. The initial state of the underwater explosion bubble directly influence its dynamic characteristic, so the conclusions offer significant reference for the further study of the underwater explosion bubble dynamic characteristic.
2023,45(20): 14-17 收稿日期：2022-10-10
DOI：10.3404/j.issn.1672-7649.2023.20.003
分类号：U661.2
作者简介：巨圆圆(1986-),男,博士,研究方向为舰艇爆炸毁伤与防护
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