完全匹配吸收边界在多层介质中的研究及应用

基于有限差分时域有限差分方法的递归算法的时间和空间来设置完全匹配层(PML)的吸收效应的推导和分析。试验结果证实,PML在多层介质中具备优异的吸声性能。最后,在FDTD算法的PML吸收层是用来模拟在两层和三层介质模拟区。PML的有效性的验证。

Research and application of fully matched absorbing boundary in multilayered media

Based on the finite difference time domain finite difference method, the derivation and analysis of the time and space of the recursive algorithm to set up the absorption effect of the perfectly matched layer (PML) is presented. The experimental results show that PML has excellent sound absorption performance in multilayer media. Finally, the PML absorption layer in the FDTD algorithm is used to simulate the simulation region in the two and three layer media. It is validation of the effectiveness of PML.