| 硫酸中多气泡声致发光光谱 |
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| 引用本文： | 安,宇.硫酸中多气泡声致发光光谱[J].应用声学,2013,32(3):205-211. |
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| 作者姓名： | 安 宇 |
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| 作者单位： | 清华大学物理系 |
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| 基金项目： | 高等学校博士学科点专项科研基金 (20120002110031);国家自然科学(10974116). |
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| 摘 要： | 非线性声波方程与气泡脉动方程联立, 可以描述声空化云中的声场以及任何一个气泡的脉动过程,为数值计算空化场问题提供了理论框架.计算的声压分布变化可以用来计算单气泡动力学,了解任何位置处气泡发光过程以及气泡内气体温度和压强变化等. 对浓硫酸中氙气泡空化云的计算定性符合实验观测, 只有钠原子线谱的计算结果相比实验观测有些出入.
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| 关 键 词： | 声致发光光谱 高温气体发光 气泡动力学 空化气泡云 |
| 收稿时间： | 2013/4/15 0:00:00 |
| 修稿时间： | 5/9/2013 10:26:57 PM |
Spectrum of multi-bubble sonoluminescence in sulfuric acid |
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| AN Yu.Spectrum of multi-bubble sonoluminescence in sulfuric acid[J].Applied Acoustics,2013,32(3):205-211. |
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| Authors: | AN Yu |
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| Institution: | Tsinghua University |
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| Abstract: | The conjunction of the nonlinear acoustic equation and the bubble pulsating equation can describe the sound field of the cavitation cloud and the process of a bubble pulsation. It provides a theoretical framework of the numerical calculation of cavitation. The calculated acoustic pressure can be employed to calculate a single bubble dynamics and to study the processes of sonoluminescence as well as the change of the temperature and pressure inside the bubble. The calculation of cavitation cloud of xenon bubbles in a dense sulfuric acid qualitatively agree with the experimental observation, while the calculated result of the sodium D-lines was a little different from the observed result. |
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| Keywords: | Spectrum of sonoluminescence high temperature gas lightening bubble dynamics cavitation bubble cloud |
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