• Acta Physica Sinica
  • Vol. 68, Issue 8, 084301-1 (2019)
Na-Na Su, Qing-Bang Han*, and Jian Jiang
DOI: 10.7498/aps.68.20182300 Cite this Article
Na-Na Su, Qing-Bang Han, Jian Jiang. Guided circumferential wave propagation characteristics for porous cylinder immersed in infinite fluid[J]. Acta Physica Sinica, 2019, 68(8): 084301-1 Copy Citation Text show less
Schematic of porous medium cylinder in an infinite fluid.无限流体中孔隙介质圆柱的示意图
Fig. 1. Schematic of porous medium cylinder in an infinite fluid.无限流体中孔隙介质圆柱的示意图
The dispersion curves of porous cylinder in infinite fluid.无限流体中孔隙介质圆柱周向导波的相速度频散曲线
Fig. 2. The dispersion curves of porous cylinder in infinite fluid.无限流体中孔隙介质圆柱周向导波的相速度频散曲线
The first sixth order mode of dispersion curves of porous cylinder in infinite fluid.无限流体中孔隙介质圆柱周向导波群速度频散曲线的前6阶模态
Fig. 3. The first sixth order mode of dispersion curves of porous cylinder in infinite fluid.无限流体中孔隙介质圆柱周向导波群速度频散曲线的前6阶模态
The dispersion curves of circumferential guide waves between an elastic cylinder and a porous cylinder in infinite fluid.无限流体中弹性圆柱和孔隙介质圆柱周向导波的频散曲线对比
Fig. 4. The dispersion curves of circumferential guide waves between an elastic cylinder and a porous cylinder in infinite fluid.无限流体中弹性圆柱和孔隙介质圆柱周向导波的频散曲线对比
Dispersion curves for different cylinder radius.不同圆柱半径下的导波频散曲线对比
Fig. 5. Dispersion curves for different cylinder radius.不同圆柱半径下的导波频散曲线对比
Dispersion curves versus porosity.不同孔隙度下的导波频散曲线对比
Fig. 6. Dispersion curves versus porosity.不同孔隙度下的导波频散曲线对比
Attenuation curves of circumferential waves with different porosity.不同孔隙度时周向导波的衰减曲线对比
Fig. 7. Attenuation curves of circumferential waves with different porosity.不同孔隙度时周向导波的衰减曲线对比
Schematic of excitation and detection points of porous medium cylinder in an infinite fluid.无限流体中孔隙介质圆柱的激发与检测点示意图
Fig. 8. Schematic of excitation and detection points of porous medium cylinder in an infinite fluid.无限流体中孔隙介质圆柱的激发与检测点示意图
Time-domain waveform of radial displacement at different detection points when the porosity is 0.1: (a) Detection point at ; (b) detection point at .孔隙度为0.1时, 不同检测点处的径向位移时域波形的对比 (a)检测点在位置; (b)检测点在位置
Fig. 9. Time-domain waveform of radial displacement at different detection points when the porosity is 0.1: (a) Detection point at ; (b) detection point at . 孔隙度为0.1时, 不同检测点处的径向位移时域波形的对比 (a)检测点在 位置; (b)检测点在 位置
Time-domain waveform of radial displacement of detection point at when the porosity is 0.1, 0.2, 0.3.孔隙度为0.1,0.2,0.3时, 检测点在位置处径向位移时域波形的对比
Fig. 10. Time-domain waveform of radial displacement of detection point at when the porosity is 0.1, 0.2, 0.3. 孔隙度为0.1,0.2,0.3时, 检测点在 位置处径向位移时域波形的对比
介质纵波波速/m·s–1横波波速/m·s–1密度/kg·m–3
弹性圆柱537031002700
孔隙介质固体基质537031002700
孔隙流体1483998
外部流体1483998
Table 1. Material parameters.
孔隙度β/% 孔隙弯曲度a静态渗透率κ0/m2黏滞系数n/kg·s–1·m–1
105.510–120.001
固体颗粒体积模量Ks/GPa 流体体积模量Kf/GPa 固体骨架体积模量Kb/GPa 固体骨架剪切模量N/GPa
43.332.1933.7020.86
Table 2. Material parameters of porous medium.
孔隙度快纵波波速/km·s–1慢纵波波速/km·s–1横波波速/km·s–1
0.14.96900.36942.8712
0.24.48110.67482.5794
0.33.86620.85792.2006
Table 3. Velocity of body sound waves in porous media with different porosity.
Na-Na Su, Qing-Bang Han, Jian Jiang. Guided circumferential wave propagation characteristics for porous cylinder immersed in infinite fluid[J]. Acta Physica Sinica, 2019, 68(8): 084301-1
Download Citation