Influence of bubble distributions on the propagation of linear waves in polydisperse bubbly liquids.
Influence of bubble distributions on the propagation of linear waves in polydisperse bubbly liquids.
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DOI：
10.1121/1.5084265
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发表时间：
2019-01
期刊：
影响因子：
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通讯作者：
Yuzhe Fan;Haisen S. Li;Chao Xu;Tian Zhou
中科院分区：
文献类型：
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作者：
Yuzhe Fan;Haisen S. Li;Chao Xu;Tian Zhou
研究了气泡的空间分布对线性声波在多分散含泡液体中传播的影响。利用图解的方法，给出了同时包含空间信息和高阶多次散射的有效波数。根据有效波数计算了声波在气泡液体中的相速度和衰减系数。一个三维随机模型，广义Matérn的硬核点过程，被用来闭合该模型。数值模拟表明，随着气泡体积分数的增大，气泡分布对衰减和相速的影响也随之增大。前人报道的实验结果与经典理论之间的不规则差异归因于气泡聚集对线性波传播的影响。本模型与实验测量结果[Leroy，StryBulevych，Page和Scanlon]的比较。(2011)。太棒了。Rev.E 83,046605]表明，建议的修正项显著改进了理论预测。
The influence of the spatial distributions of bubbles on the propagation of linear acoustic waves in polydisperse bubbly liquids is studied. Using the diagrammatic approach, the effective wavenumber, which includes both spatial information and higher orders of multiple scattering, is presented. The phase speed and attenuation coefficient of acoustic waves in bubbly liquids are calculated from the effective wavenumber. A three-dimensional random model, the Generalized Matérn's hard-core point process, is used to close the model. Numerical simulations reveal that as the bubble volume fraction becomes larger so does the effect of the bubble distributions on the attenuation and phase speed. The irregular discrepancy between previously reported experimental results and the classical theory is attributed to the influence of bubble clustering on the propagation of linear waves. The comparison between the present model and the experimental measurements [Leroy, Strybulevych, Page, and Scanlon. (2011). Phys. Rev. E 83, 046605] reveals that the proposed correction term significantly improves the theoretical predictions.