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首页> 外文期刊>Japanese journal of applied physics >Dynamics of Laser-Induced Cavitation Bubble near Solid Boundary
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Dynamics of Laser-Induced Cavitation Bubble near Solid Boundary

机译：固体边界附近激光诱导空化气泡的动力学

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摘要

The dynamics of a laser-induced cavitation bubble created near solid boundary is investigated using a new force sensor together with a hydrophone. The experimental results indicate that liquid-jet formation and acoustic transient emission are general features of bubble dynamics; liquid-jet formation occurs earlier than that of the acoustic transient. A comparison of the liquid jet energy and acoustic energy reveals that the acoustic transient, rather than the liquid jet, plays a vital role in the damping mechanism during the second collapse for γ = 0.75 (γ = L/R_(max), where R_(max) being the maximum bubble radius and L denoting the distance of the cavity inception from the boundary); moreover, the amplitudes of acoustic transients and liquid jet versus the nondimensional distance γ are also derived, which are valuable in hydraulic cavitation, laser lithotripsy and laser ophthalmology.
机译：使用新型力传感器和水听器研究了在固体边界附近产生的激光诱导的空化气泡的动力学。实验结果表明，液体射流的形成和瞬态声发射是气泡动力学的普遍特征。液体射流的形成要早于声瞬变的形成。液体射流能量和声能的比较表明，对于γ= 0.75（γ= L / R_（max），在第二次坍塌过程中，瞬态声而不是液体射流在阻尼机制中起着至关重要的作用。 （max）是最大气泡半径，L表示腔体起始点到边界的距离）；此外，还得出了瞬变和液体射流的振幅与无量纲距离γ的关系，这在水力空化，激光碎石术和激光眼科中很有价值。

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