Sonoluminescence

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In The Name of God
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Comparison of sonoluminescence in Water and
Sulfuric Acid
Kh. Imani, M. Silatani, R. Rezaei-Nasirabad,
A. Moshaii, R. Sadighi-Bonabi,
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History

• 1934 Bath Ultrasound by H. Frenzel H.
  Schultes(MBSL)

• 1989 F. Gaitan (SBSL)

• 2005 F. Flannigan S. Suslick ( H2SO4)

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Applications
Sonochemistiy Sonofusion

Sonodynamic therapy
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Physical and SL properties of some liquids
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Why sulfuric acid ?
Higher intensity
Appearance of line emission in spectrum
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Hydrodynamics model
Bubble dynamics
boundary condition of pressure and Van der waals
equation of gas



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Chemical reaction
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Mass transfer at the bubble wall
The bubble contents is assumed to be
( Nobel gasH2O Reaction products )
14/17
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Heat transfer at the bubble wall
Conductivity coefficient
Heat Conduction

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Instability conditions of bubble
Diffusion Instability (D-S)
Shape Instability (Sh-S)

Bjerknes Instability (Bj.thr.)


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Physical properties
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Simulation Results
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With regard to computed phase diagrams, we chose
the junction point (Pa, R0) of D-S curve with
other stability curves
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Evolution of radius versus time in one cycle
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(No Transcript)
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Total Number of Particles
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Number of H2O
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Number of H2SO4
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Temperature
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Calculation
Experimental

• Troia, et. al, Ultrasonic
• sonochemistry13(2006-)278

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Thanks for your attention