弹性波在多孔弹性介质中充液圆柱腔中的传播：表面张力的影响

IF 5.7 1区工程技术 Q1 ENGINEERING, MULTIDISCIPLINARY

International Journal of Engineering Science Pub Date : 2024-12-21 DOI:10.1016/j.ijengsci.2024.104197

Irina Markova, Mikhail Markov, Rafael Ávila-Carrera

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引用次数: 0

摘要

在这项工作中，利用Biot的理论计算了在充满流体的圆柱形腔中由声学振荡点源产生的合成波形。对不同不混相流体填充孔隙和空腔的情况进行了计算。研究了表面张力对弹性波参数的影响。结果表明，在低频范围内，与表面张力相关的效应的影响是显著的（kf R） <；1，式中kf为纵波在流体中的波数；R是空腔半径。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Propagation of elastic waves in a fluid-filled cylindrical cavity located in a poroelastic medium: The influence of surface tension

In this work, synthetic waveforms generated by a point source of acoustic oscillations in a cylindrical cavity filled with a fluid are calculated using Biot's theory. The calculations are performed for the case when the pores and the cavity are filled with different immiscible fluids. The influence of surface tension on the parameters of elastic waves is investigated. It is shown that the influence of the effects associated with the presence of the surface tension is significant in the low frequency range (k_f R) < 1, where k_f is the wave number of the longitudinal wave in the fluid; R is the cavity radius.

The influence of capillary effects on the velocity and attenuation of the low-frequency zero-order normal mode (i. e., the Stoneley wave) has been studied. It is shown that the velocity and attenuation of this wave depend significantly on the surface tension at the boundary between the porous medium and the cavity. Our results show that the influence of capillary forces on kinematic and dynamic parameters of the zero-order normal mode increases with decreasing signal frequency.

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来源期刊

International Journal of Engineering Science 工程技术-工程：综合

CiteScore

11.80

自引率

16.70%

发文量

审稿时长

45 days

期刊介绍： The International Journal of Engineering Science is not limited to a specific aspect of science and engineering but is instead devoted to a wide range of subfields in the engineering sciences. While it encourages a broad spectrum of contribution in the engineering sciences, its core interest lies in issues concerning material modeling and response. Articles of interdisciplinary nature are particularly welcome. The primary goal of the new editors is to maintain high quality of publications. There will be a commitment to expediting the time taken for the publication of the papers. The articles that are sent for reviews will have names of the authors deleted with a view towards enhancing the objectivity and fairness of the review process. Articles that are devoted to the purely mathematical aspects without a discussion of the physical implications of the results or the consideration of specific examples are discouraged. Articles concerning material science should not be limited merely to a description and recording of observations but should contain theoretical or quantitative discussion of the results.