| Effects of Ambient Pressure on Bubble Characteristics |
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| 作者姓名： | 卢新培 刘明海 |
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| 作者单位： | InstituteofElectricalandElectronicEngineering,HuazhongUniversityofScienceandTechnology,Wuhan430074 |
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| 摘 要： | The effects of the ambient pressure Pambient on the bubble characteristics of pulsed discharge in water are investigated.The simulation results show that,when Pambient increases from 1 atm to 100 atm,the bubble radius R decreases from 4cm to 7mm,and its pulsation period decreases from 8ms to 0.2ms.The results also show that the peak pressure of the first shock wave is independent of Pambient,but the peak pressure of the second shock wave caused by the bubble re-expansion decreases when Pambient increases.On the other hand,the larger the ambient pressure,the larger the peak pressure of the plasma in the bubble,while the plasma temperature is independent of Pambient.
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| 关 键 词： | 脉冲放电 水泡特征 环境压强效应 |
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