中国物理B ›› 2011, Vol. 20 ›› Issue (8): 87804-087804.doi: 10.1088/1674-1056/20/8/087804

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Investigation of a mutual interaction force at different pressure amplitudes in sulfuric acid

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

  1. (1)Department of Physics, Sharif University of Technology, 11365-91, Tehran, Iran; (2)Department of Physics, Sharif University of Technology, 11365-91, Tehran, Iran; Department of Physics, Islamic Azad University Central Tehran Branch, Tehran, Iran
  • 收稿日期:2010-11-06 修回日期:2010-12-28 出版日期:2011-08-15 发布日期:2011-08-15
  • 基金资助:
    Project supported by Sharif University of Technology.

Investigation of a mutual interaction force at different pressure amplitudes in sulfuric acid

Nastaran Rezaeea)b), Rasoul Sadighi-Bonabia)†, Mona Mirheydaria)b), and Homa Ebrahimia)   

  1. a Department of Physics, Sharif University of Technology, 11365-91, Tehran, Iran; b Department of Physics, Islamic Azad University Central Tehran Branch, Tehran, Iran
  • Received:2010-11-06 Revised:2010-12-28 Online:2011-08-15 Published:2011-08-15
  • Supported by:
    Project supported by Sharif University of Technology.

摘要: This paper investigates the secondary Bjerknes force for two oscillating bubbles in various pressure amplitudes in a concentration of 95% sulfuric acid. The equilibrium radii of the bubbles are assumed to be smaller than 10 μm at a frequency of 37 kHz in various strong driving acoustical fields around 2.0 bars (1 bar=105 Pa). The secondary Bjerknes force is investigated in uncoupled and coupled states between the bubbles, with regard to the quasi-adiabatic model for the bubble interior. It finds that the value of the secondary Bjerknes force depends on the driven pressure of sulfuric acid and its amount would be increased by liquid pressure amplitude enhancement. The results show that the repulsion area of the interaction force would be increased by increasing the driven pressure because of nonlinear oscillation of bubbles.

关键词: multi-bubble sonoluminescence, secondary Bjerknes force, coupled and uncoupled state, nonlinear oscillation

Abstract: This paper investigates the secondary Bjerknes force for two oscillating bubbles in various pressure amplitudes in a concentration of 95% sulfuric acid. The equilibrium radii of the bubbles are assumed to be smaller than 10 μm at a frequency of 37 kHz in various strong driving acoustical fields around 2.0 bars (1 bar=105 Pa). The secondary Bjerknes force is investigated in uncoupled and coupled states between the bubbles, with regard to the quasi-adiabatic model for the bubble interior. It finds that the value of the secondary Bjerknes force depends on the driven pressure of sulfuric acid and its amount would be increased by liquid pressure amplitude enhancement. The results show that the repulsion area of the interaction force would be increased by increasing the driven pressure because of nonlinear oscillation of bubbles.

Key words: multi-bubble sonoluminescence, secondary Bjerknes force, coupled and uncoupled state, nonlinear oscillation

中图分类号:  (Sonoluminescence, triboluminescence)

  • 78.60.Mq
43.25.Yw (Nonlinear acoustics of bubbly liquids)