Modification of Rayleigh–Plesset Theory for Reproducing Dynamics of Cavitation Bubbles in Liquid-Phase Laser Ablation
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概要
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The solution of the conventional Rayleigh–Plesset equation did not agree with the experimental results on the temporal variations of the sizes of cavitation bubbles produced by laser ablation in water. In this work, we modified the conventional Rayleigh–Plesset theory in the following two points to reproduce the experimental observation theoretically. One was to introduce the effect of the contact angle among the water, the cavitation bubble, and the ablation target. The other was to treat the surface tension and the kinematic viscosity coefficient of water as additional adjusting parameters to fit the theoretical result with the experimental observation. The latter modification was effective especially for laser ablation in the pressurized water. Better agreement between the theoretical and the experimental results was realized with the help of these modifications, but anomalous thermodynamic parameters were necessary to obtain the best fitting. We evaluated the pressures and the temperatures inside the cavitation bubbles.
- 2010-11-25
著者
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Takada Noriharu
Department Of Electrical Engineering And Computer Science Nagoya University
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Soliman Wafaa
Department Of Electrical Engineering And Computer Science Nagoya University
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Nakano Tetsutaro
Department Of Electrical Engineering And Computer Science Nagoya University
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Sasaki Koichi
Division Of Quantum Science And Engineering Faculty Of Engineering Hokkaido University
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Soliman Wafaa
Department of Electrical Engineering and Computer Science, Nagoya University, Nagoya 464-8603, Japan
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Nakano Tetsutaro
Department of Electrical Engineering and Computer Science, Nagoya University, Nagoya 464-8603, Japan
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