Effects of Ambient Pressure on Bubble Characteristics

Chin. Phys. Lett.

2002, Vol. 19

Issue (5): 704-706 DOI:

Original Articles

Effects of Ambient Pressure on Bubble Characteristics

LU Xin-Pei;LIU Ming-Hai;JIANG Zhong-He;PAN Yuan

Institute of Electrical and Electronic Engineering, Huazhong University of Science and Technology, Wuhan 430074

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LU Xin-Pei, LIU Ming-Hai, JIANG Zhong-He et al 2002 Chin. Phys. Lett. 19 704-706

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Abstract The effects of the ambient pressure P_ambient on the characteristics of bubble of pulsed discharge in water are investigated. The simulation results show that, when P_ambient increases from 1atm to 100 atm, the bubble radius R decreases from 4 cm to 7 mm, and its pulsation period decreases from 8 ms to 0.2 ms. The results also show that the peak pressure of the first shock wave is independent of P_ambient, but the peak pressure of the second shock wave caused by the bubble reexpansion decreases when P_ambient 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 P_ambient.

Keywords: 52.80.Wq 52.80.Mg

Published: 01 May 2002

PACS:	52.80.Wq	(Discharge in liquids and solids)
	52.80.Mg	(Arcs; sparks; lightning; atmospheric electricity)

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https://cpl.iphy.ac.cn/ OR https://cpl.iphy.ac.cn/Y2002/V19/I5/0704

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