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Numerical
simulation of tsunami propagation using the
characteristic-based split method
Gunawan Budi Wijaya, Tam Thanh Bui and Worsak Kanok-Nukulchai |
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Vol. 3 (2008), No. 10, 1939–1962
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Abstract |
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A disastrous tsunami struck North Sumatra, Indonesia and many other countries on December 26, 2004. In response to this disaster, we develop a two-dimensional numerical model to simulate tsunami propagation on the open sea. Tsunami propagation — a process during which the wave has a relatively small height compared to its breadth — is modeled using the shallow water equations. To solve these equations, our model employs the characteristic-based split method first introduced by Zienkiewicz. Four case studies are proposed to verify the numerical model, and our results show that the present numerical model is both accurate and efficient. The numerical model is then used to model the propagation of the tsunami of December 26, 2004, and gives a relatively close result. |
Keywords
tsunami propagation, shallow water equations, finite
element method, characteristic-based split method
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Milestones
Received: 15 June 2007
Revised: 19 February 2008
Accepted: 21 February 2008
Published: 1 December 2008
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Authors |
| Gunawan Budi Wijaya | |
| School of Engineering and
Technology Asian Institute of Technology P.O. Box 4 Klong Luang, Pathumthani 12120 Thailand |
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| Tam Thanh Bui | |
| School of Engineering and
Technology Asian Institute of Technology P.O. Box 4 Klong Luang, Pathumthani 12120 Thailand |
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| Worsak Kanok-Nukulchai | |
| School of Engineering and
Technology Asian Institute of Technology P.O. Box 4 Klong Luang, Pathumthani 12120 Thailand |
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