Eigenvalue computation in acoustic waveguides with some perfectly matched layers(Helmholtz方程在多层无界声波导中特征问题计算)
尝试在深度方向引入PML（完美的匹配层）选取适当的非线性局部坐标正交变换及方程变换，将Helmholtz方程uxx+uzx+k2(x，z)u = 0变换为，然后再选取非对称Rayleigh商迭代算法来求解Helmholtz方程的特征问题，即求解的特征值和特征函数.数值模拟表明，此方法是可行的，并可以大大改善数值求解的效率....
| Main Authors: | , |
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| Format: | Article |
| Language: | zho |
| Published: |
Zhejiang University Press
2007-07-01
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| Series: | Zhejiang Daxue xuebao. Lixue ban |
| Subjects: | |
| Online Access: | https://doi.org/zjup/1008-9497.2007.34.4.384-389 |