本模型研究了在恒定频率下驱动的二维声悬浮器，几何结构作了一定程度的简化，弹性小颗粒在驻声场中均匀释放，确定了这些颗粒在声辐射力、黏性阻力以及重力影响下的路径。(In this model, a two-dimensional acoustic levitator driven at a constant frequency is studied. The geometric structure is simplified to a certain extent. Small elastic particles are uniformly released in the standing sound field. The path of these particles under the influence of acoustic radiation force, viscous resistance and gravity is determined.)