论文标题
粘弹性起泡介质和超声剪切模式效应
Viscoelastic bubbly media and ultrasonic shear-mode effects
论文作者
论文摘要
在这里，我们表明，在超声波场中，将剪切模式重新转换为有效压缩波的现象对中粘度液体或弱凝胶中的气泡具有显着影响。我们在有效的波数中介绍了随之而来的额外术语，并找到不同气泡半径的声速变化。在高浓度的气泡下，在多散射模型中纳入剪切模式效应可以帮助识别出额外的共振特征出现的气泡尺寸。
Here we show that in ultrasonic fields the phenomenon of reconversion of shear-modes into an effective compressional wave has a significant effect for bubbles in a medium viscosity liquid or weak gel. We present the consequent extra terms in the effective wavenumber and find the changes in sound velocity for different bubble radii. At high concentrations of bubbles the inclusion of shear-mode effects in the multiple-scattering model can help identify bubble sizes where additional resonance signatures emerge.
