孤立子内波存在下的声传播仿真研究

孤立子内波会对声传播产生巨大的影响,基于有限元方法利用COMSOL软件对孤立子内波影响下的声学问题进行求解,仿真研究.首先建立了孤立子内波模型,通过仿真分析了孤立子内波对声场的影响.结果显示,孤立子内波会影响声线的传播轨迹和传播损失,可使声场能量分布更均匀.孤立子内波还会对声矢量场产生影响,使水平质点振速传播损失减小,使垂向质点振速略微增加.

Simulation research on sound propagation in the perspective of internal soliton wave

The internal soliton wave has a great influence on sound propagation. Based on the finite element method, the acoustic problem under the influence of the internal soliton wave is solved by COMSOL software. Firstly, the internal soliton wave model is established, and the influence of the internal soliton wave on the sound field is analyzed through simulation. The results show that the internal soliton wave affects the propagation trajectory and propagation loss of the sound line, which makes the energy distribution of the sound field more uniform. The internal soliton wave also affects the sound vector field, which reduces the vibration loss of the horizontal particle vibration velocity and slightly increases the vertical particle vibration velocity.