中国物理B ›› 2011, Vol. 20 ›› Issue (7): 74302-074302.doi: 10.1088/1674-1056/20/7/074302

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A unique circular path of moving single bubble sonoluminescence in water

Rasoul Sadighi-Bonabi1, Homa Ebrahimi1, Mona Mirheydari2, Nastaran Rezaee2, Lida Nikzad3   

  1. (1)Department of Physics, Sharif University of Technology, Tehran 11365-91, Iran; (2)Department of Physics, Sharif University of Technology, Tehran 11365-91, Iran; Department of Physics, Islamic Azad University Central Tehran Branch, Tehran 14676-86831, Iran; (3)Laser and Optics Research School, Tehran 14676-86831, Iran
  • 收稿日期:2010-10-10 修回日期:2010-12-26 出版日期:2011-07-15 发布日期:2011-07-15

A unique circular path of moving single bubble sonoluminescence in water

Rasoul Sadighi-Bonabia)†, Mona Mirheydari a)b), Homa Ebrahimia), Nastaran Rezaeea)b), and Lida Nikzad c)   

  1. a Department of Physics, Sharif University of Technology, Tehran 11365-91, Iran; b Department of Physics, Islamic Azad University Central Tehran Branch, Tehran 14676-86831, Iran; c Laser and Optics Research School, Tehran 14676-86831, Iran
  • Received:2010-10-10 Revised:2010-12-26 Online:2011-07-15 Published:2011-07-15

摘要: Based on a quasi-adiabatic model, the parameters of the bubble interior for a moving single bubble sonoluminescence (m-SBSL) in water are calculated. By using a complete form of the hydrodynamic force, a unique circular path for the m-SBSL in water is obtained. The effect of the ambient pressure variation on the bubble trajectory is also investigated. It is concluded that as the ambient pressure increases, the bubble moves along a circular path with a larger radius and all bubble parameters, such as gas pressure, interior temperature and light intensity, increase. A comparison is made between the parameters of the moving bubble in water and those in N-methylformamide. With fluid viscosity increasing, the circular path changes into an elliptic form and the light intensity increases.

关键词: sonoluminescence, bubble trajectory, fluid viscosity, bremsstrahlung

Abstract: Based on a quasi-adiabatic model, the parameters of the bubble interior for a moving single bubble sonoluminescence (m-SBSL) in water are calculated. By using a complete form of the hydrodynamic force, a unique circular path for the m-SBSL in water is obtained. The effect of the ambient pressure variation on the bubble trajectory is also investigated. It is concluded that as the ambient pressure increases, the bubble moves along a circular path with a larger radius and all bubble parameters, such as gas pressure, interior temperature and light intensity, increase. A comparison is made between the parameters of the moving bubble in water and those in N-methylformamide. With fluid viscosity increasing, the circular path changes into an elliptic form and the light intensity increases.

Key words: sonoluminescence, bubble trajectory, fluid viscosity, bremsstrahlung

中图分类号:  (Sonoluminescence)

  • 43.35.Hl