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Dispersion-correction of finite element model for simulation of distant tsunamis

Authors
Yoon, Sung bumLim, Chae hoBaek, Un il
Issue Date
Sep-2005
Publisher
Korea Water Resources Association
Keywords
Boussinesq-type wave equation; Dispersion effect; Dispersion-correction scheme; Finite element model; Tsunami
Citation
31st IAHR Congress 2005: Water Engineering for the Future, Choices and Challenges, pp 3833 - 3840
Pages
8
Indexed
SCOPUS
Journal Title
31st IAHR Congress 2005: Water Engineering for the Future, Choices and Challenges
Start Page
3833
End Page
3840
URI
https://scholarworks.bwise.kr/erica/handle/2021.sw.erica/46434
Abstract
For the simulation of tsunami propagation an active dispersion-correction scheme for two-dimensional finite element model has been developed based on a simplified Boussinesq-type wave equation. This model employs an arbitrary triangular mesh and an explicit time integration scheme. The dispersion errors associated with numerical discretization can be controlled to get an accurate physical dispersion of waves. The validity of the dispersion-correction scheme developed in this study is verified through the comparison of numerical solutions calculated using the new scheme with analytical ones considering dispersion effect of waves. As a result, the present model is shown to be considerably accurate. © 31st IAHR Congress 2005: Water Engineering for the Future, Choices and Challenges. All Rights Reserved.
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COLLEGE OF ENGINEERING SCIENCES > DEPARTMENT OF CIVIL AND ENVIRONMENTAL ENGINEERING > 1. Journal Articles

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