The implementation of an improved NPML absorbing boundary condition in elastic wave modeling
✍ Scribed by Zhen Qin; Minghui Lu; Xiaodong Zheng; Yao Yao; Cai Zhang; Jianyong Song
- Book ID
- 107505796
- Publisher
- Chinese Geophysical Society
- Year
- 2009
- Tongue
- English
- Weight
- 866 KB
- Volume
- 6
- Category
- Article
- ISSN
- 1672-7975
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## Abstract Current implementations of the Mur 1st‐order absorbing boundary condition (Mur1) in the alternating‐direction implicit finite‐difference time‐domain (ADI‐FDTD) method treat the intermediate (half‐step) variables as electromagnetic field quantities that are an approximate solution to Max
Various local absorbing boundary conditions are implemented in the TLM method and their corresponding reflections are compared as a waveguide termination. The instability in different ABCs is discussed and reflections from the terminating walls are computed. An improvement for the matched terminatio