Wu J, Zhu Z, Du G
Department of Physics, University of Vermont, Burlington 05405, USA.
Ultrasound Med Biol. 1995;21(4):545-52. doi: 10.1016/0301-5629(94)00134-y.
Bubbles oscillating at resonance frequency dramatically enhance nonlinearity of a bubbly liquid. A second-order nonlinear wave equation taking account of bubble pulsation is solved. Numerical calculations based on the equation are compared favorably with experimental results. Possible biological significance of the highly nonlinear medium is also discussed.
以共振频率振荡的气泡会显著增强气泡液体的非线性。求解了一个考虑气泡脉动的二阶非线性波动方程。基于该方程的数值计算结果与实验结果吻合良好。还讨论了这种高度非线性介质可能具有的生物学意义。