A new absorbing boundary condition using an absorbing layer is presented for application to finite-difference time-domain (FDTD) calculation of the wave equation. This algorithm is by construction a hybrid between the Berenger perfectly matched layer (PML) algorithm and the one-way Sommerfeld algori
Pseudospectra for the wave equation with an absorbing boundary
β Scribed by Tobin A. Driscoll; Lloyd N. Trefethen
- Publisher
- Elsevier Science
- Year
- 1996
- Tongue
- English
- Weight
- 827 KB
- Volume
- 69
- Category
- Article
- ISSN
- 0377-0427
No coin nor oath required. For personal study only.
π SIMILAR VOLUMES
we mtroduce a fourth-order energy for the three-chmenslonal wave equation m rectangular domams with second-order absorbmg boundary condltlons A decay rate of the energy m the domam with respect to time IS estimated m terms of the boundary integral Absorbmg boundary conchtlons considered m tins paper
y3 dB width. In contrast, in the E-plane, there was a large change across most of the band, with a threshold at about 20 GHz, above which the average was about 150% in the y10 dB width, although there are two prominent peaks at about 20.5 GHz, where the measurements in Figures 1α3 were made, and als
In this paper we develop a method for the simulation of wave propagation on artificially bounded domains. The acoustic wave the approach is not only costly in terms of memory requireequation is solved at all points away from the boundaries by a ments but also it is not very flexible. In particular,