激光空泡特性实验与数值计算研究

王雨虹; 王江安; 任席闯

doi:10.3321/j.issn:1000-3290.2009.12.040

物理学报

激光空泡特性实验与数值计算研究

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王雨虹, 王江安, 任席闯. 2009: 激光空泡特性实验与数值计算研究, 物理学报, 58(12): 8372-8378. doi: 10.3321/j.issn:1000-3290.2009.12.040

引用本文:

王雨虹, 王江安, 任席闯. 2009: 激光空泡特性实验与数值计算研究, 物理学报, 58(12): 8372-8378. doi: 10.3321/j.issn:1000-3290.2009.12.040

Wang Yu-Hong, Wang Jiang-An, Ren Xi-Chuang. 2009: Laser induced bubble characteristics with experimental and numerical methods, Acta Physica Sinica, 58(12): 8372-8378. doi: 10.3321/j.issn:1000-3290.2009.12.040

Citation:

Wang Yu-Hong, Wang Jiang-An, Ren Xi-Chuang. 2009: Laser induced bubble characteristics with experimental and numerical methods, Acta Physica Sinica, 58(12): 8372-8378. doi: 10.3321/j.issn:1000-3290.2009.12.040

激光空泡特性实验与数值计算研究

海军工程大学电子工程学院,武汉,430033

Laser induced bubble characteristics with experimental and numerical methods

摘要: 基于激光空泡内物质以水蒸气为主的特征,选择特定的Rayleigh-Plesset方程形式,确定激光空泡的动态泡壁位置,并考虑水中气体与激光空泡之间的质量扩散、水蒸气的凝结与蒸发、水的压缩性及热传导、声辐射、黏性、表面张力等因素.建立激光空泡的产生、照相和声压测量系统.通过数值计算与实验结果相结合的办法,使泡内压力的计算值与实验值之间相对误差控制在10%以内,揭示吸收的激光脉冲能量与激光空泡的半径、泡内压力和温度之间的对应关系,以及吸收的激光脉冲能量不变时半径、压力和温度的变化规律.旨在为激光空泡的相关研究提供一定的参考.
- 激光空泡 /
- 水蒸气 /
- 数值模拟 /
- Rayleigh-Plesset方程
Abstract: According to the characteristics that a laser induced bubble is filled with mostly water vapor and a little noncondensable gas, a specific Rayleigh-Plesset equation which was used to determine the position of the dynamic bubble wall and other concerned conditions were used. Mass diffusion between the bubble and-the gases dissolved in surrounding water, compression of water, condensation and evaporation at the bubble wall, heat conduction, sound radiation, viscosity of water and surface tension were considered. A laser induced bubble producing, photographing and pressure measuring system was set up. Numerical and experimental method was used; the relative error of pressure inside bubble was under 10% . The relations were showed among the absorbed laser puergy, the pressure and the temperature in the bubble and the bubble radius.

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激光空泡特性实验与数值计算研究

海军工程大学电子工程学院,武汉,430033

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摘要: 基于激光空泡内物质以水蒸气为主的特征,选择特定的Rayleigh-Plesset方程形式,确定激光空泡的动态泡壁位置,并考虑水中气体与激光空泡之间的质量扩散、水蒸气的凝结与蒸发、水的压缩性及热传导、声辐射、黏性、表面张力等因素.建立激光空泡的产生、照相和声压测量系统.通过数值计算与实验结果相结合的办法,使泡内压力的计算值与实验值之间相对误差控制在10%以内,揭示吸收的激光脉冲能量与激光空泡的半径、泡内压力和温度之间的对应关系,以及吸收的激光脉冲能量不变时半径、压力和温度的变化规律.旨在为激光空泡的相关研究提供一定的参考.

English Abstract

Laser induced bubble characteristics with experimental and numerical methods

海军工程大学电子工程学院,武汉,430033

Keywords:

Abstract: According to the characteristics that a laser induced bubble is filled with mostly water vapor and a little noncondensable gas, a specific Rayleigh-Plesset equation which was used to determine the position of the dynamic bubble wall and other concerned conditions were used. Mass diffusion between the bubble and-the gases dissolved in surrounding water, compression of water, condensation and evaporation at the bubble wall, heat conduction, sound radiation, viscosity of water and surface tension were considered. A laser induced bubble producing, photographing and pressure measuring system was set up. Numerical and experimental method was used; the relative error of pressure inside bubble was under 10% . The relations were showed among the absorbed laser puergy, the pressure and the temperature in the bubble and the bubble radius.

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激光空泡特性实验与数值计算研究

Laser induced bubble characteristics with experimental and numerical methods

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激光空泡特性实验与数值计算研究

English Abstract

Laser induced bubble characteristics with experimental and numerical methods

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