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Effects of Liquid Second Viscosity in High-Amplitude Sonoluminescence |
| Ahmad Moshaii1,3;Rasool Sadighi-Bonabi1,2;Mohammad Taeibi-Rahni3;Mehdi Daemi1 |
| 1Department of Physics, Sharif University of Technology, PO Box 11365-9161, Tehran, I. R. Iran
2Bonab Research Center, PO Box 56515-196, Bonab, Azarbayejan Province, I. R. Iran
3(IPM) Institute for Studies in Theoretical Physics and Mathematics, PO Box 19395-5531, Tehran, I. R. Iran
3Department of Aerospace Engineering, Sharif University of Technology, PO Box 11365-9161, Tehran, I. R. Iran
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| Cite this article: |
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Ahmad Moshaii, Rasool Sadighi-Bonabi, Mohammad Taeibi-Rahni et al 2004 Chin. Phys. Lett. 21 356-359 |
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Abstract The well-known Rayleigh-Plesset (RP) equation is the base of nearly all hydrodynamical descriptions of sonoluminescence (SL) phenomenon. A major deficiency of this equation is that it accounts for viscosity of an incompressible liquid and compressibility, separately. By removing this approximation, we have modified the RP equation considering effects of liquid second viscosity. This modification exhibits its importance at the end of an intense collapse, so that the new model predicts appearance of a new picosecond bouncing during high amplitude sonoluminescence radiation. This new bouncing produces very sharp (sub-picosecond) peaks on the top of sonoluminescence pulse. These new behaviors are more remarkable for higher driving pressures and lower ambient temperatures.
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| Keywords:
47.55.Bx
43.25.Yw
43.25.+y
78.60.Mq
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Published: 01 February 2004
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