【作者】 范一良； 季振林；

【Author】 FAN Yi-liang;JI Zhen-lin;School of Power and Energy Engineering,Harbin Engineering University;

【机构】 哈尔滨工程大学动力与能源工程学院；

【摘要】 介质的流动对声波的传播有很大的影响。本文推导了对流波动方程在激励面、阻抗面、穿孔面、刚性面和无反射端的边界条件的表达式,使其在有限元的实现中更加简化。更多还原

【Abstract】 Moving medium has significant impacts on the sound propagation.The expressions of boundary conditions of the convected wave equation at acoustic excitation wall,impedance wall,perforation wall,rigid wall and no reflection surface are developed in the present work,which make it much more simplified to be implemented in the weak formulation of the finite element method(FEM).更多还原