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Strategy for eliminating high-frequency instability caused by multi-transmitting boundary in numerical simulation of seismic site effect
- Source :
- Frontiers in Earth Science. 10
- Publication Year :
- 2022
- Publisher :
- Frontiers Media SA, 2022.
-
Abstract
- A multi-transmitting boundary is a local artificial boundary widely used for numerically simulating seismic site effects. However, similar to other artificial boundaries, the multi-transmitting boundary has instability issue in numerical simulation. Based on the concept of multi-directional transmitting formula, a strategy for eliminating the high-frequency instability of the transmitting boundary is studied and a measure is proposed using a neighbour node of a boundary node to realize smoothing filtering. The proposed measure is verified through numerical analysis. The smoothing coefficient chosen for this measure provides a reference for deriving the coefficient of multidirectional transmitting formula in the time domain.
- Subjects :
- General Earth and Planetary Sciences
Subjects
Details
- ISSN :
- 22966463
- Volume :
- 10
- Database :
- OpenAIRE
- Journal :
- Frontiers in Earth Science
- Accession number :
- edsair.doi.dedup.....0a16c70d7e122fc51e89a1e99aa1203b