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Ambient temperature effect on single-bubble sonoluminescence in different concentrations of sulfuric acid solutions

Imani, Kh ; Sharif University of Technology | 2012

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  1. Type of Document: Article
  2. DOI: 10.1103/PhysRevE.85.016329
  3. Publisher: 2012
  4. Abstract:
  5. The effect of ambient temperature on the parameters of the single-bubble sonoluminescence in sulfuric acid (SA) diluted in water is studied. Using a hydrochemical model, three dominant instabilities of shape, Bjerknes, and diffusion are considered. The phase diagrams of the bubble in the (R 0 - P a) space are presented, and the parametric dependence of the light intensity is discussed. In contrast to water, the calculated thermal-bremsstrahlung mechanism of light emission at the fixed degassing condition of high SA concentrations shows that, with increasing the temperature of aqueous SA solutions, the light intensity increases. However, at diluted SA solutions similar to water, the light intensity decreases with increasing the ambient temperature. For 50wt% SA, it was observed that the emitted light was almost temperature independent. Furthermore, it is found that, at the fixed temperatures of 20°C, 10°C, and 0°C, the aqueous solutions of 65wt%, 50wt%, and 45wt% SA, respectively, have the maximum light emission
  6. Keywords:
  7. Ambient temperatures ; Emitted light ; Fixed temperature ; Hydrochemical models ; Light intensity ; Parametric dependence ; Single-bubble sonoluminescence ; Sulfuric acid solution ; Light emission ; Phase diagrams ; Sonoluminescence ; Sulfuric acid ; Temperature
  8. Source: Physical Review E - Statistical, Nonlinear, and Soft Matter Physics ; Volume 85, Issue 1 , January , 2012 ; 15393755 (ISSN)
  9. URL: http://journals.aps.org/pre/abstract/10.1103/PhysRevE.85.016329