论文标题
热雾液中的球形热颗粒上的声辐射力，包括散射和微流动
The acoustic radiation force on a spherical thermoviscous particle in a thermoviscous fluid including scattering and microstreaming
论文作者
论文摘要
我们在悬浮在流体中并位于轴对称入射声波的小球形粒子上得出了时间平均的声辐射力的一般分析表达式。我们将颗粒的情况视为弹性固体或流体颗粒。理论中包括粒子振动，声学散射，声学微流，热传导和温度依赖性液体粘度的影响。对于流体粒子的情况，还考虑了粒子内部的声流。相对于粒子半径，对粘性和热边界层的宽度没有任何限制。我们将所得的声辐射力与文献中以前理论获得的声音辐射力进行了比较，并确定了理论同意的限制，以及粒子和流体材料的特定情况，在这些理论之间存在定性或显着的定量偏差的情况下。
We derive general analytical expressions for the time-averaged acoustic radiation force on a small spherical particle suspended in a fluid and located in an axisymmetric incident acoustic wave. We treat the cases of the particle being either an elastic solid or a fluid particle. The effects of particle vibrations, acoustic scattering, acoustic microstreaming, heat conduction, and temperature-dependent fluid viscosity are all included in the theory. Acoustic streaming inside the particle is also taken into account for the case of a fluid particle. No restrictions are placed on the widths of the viscous and thermal boundary layers relative to the particle radius. We compare the resulting acoustic radiation force with that obtained from previous theories in the literature, and we identify limits, where the theories agree, and specific cases of particle and fluid materials, where qualitative or significant quantitative deviations between the theories arise.
