孤立子内波存在下的声传播仿真研究  

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

作　　者：邢传玺[1] 宋扬 刘文博[2,3] 刘佳琪 姜思源 崔琳 岳露露 XING Chuan-xi;SONG Yang;LIU Wen-bo;LIU Jia-qi;JIANG Si-yuan;CUI Lin;YUE Lu-lu(School of Electrical and Information Engineering, Yunnan Minzu University, Kunming 650500 China;Acoustic Science and Technology Laboratory, Harbin Engineering University, Harbin 150001, China;College of Underwater Acoustic Engineering, Harbin Engineering University, Harbin 150001, China)

机构地区：[1]云南民族大学电气信息工程学院,云南昆明650500 [2]哈尔滨工程大学水声技术重点实验室,黑龙江哈尔滨150001 [3]哈尔滨工程大学水声工程学院,黑龙江哈尔滨150001

出　　处：《云南民族大学学报（自然科学版）》2019年第4期358-365,共8页Journal of Yunnan Minzu University:Natural Sciences Edition

基　　金：国家自然科学基金(61761048);国家重点研发计划项目(2016YFC1400103)

摘　　要：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.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.

关 键 词：海洋内波 孤立子内波 COMSOL有限元 声传播 

分 类 号：P733.24[天文地球—物理海洋学]