Numerical simulations of landslide-generated tsunamis using dispersive two-layer model
| Autor: | Kimura, T., Kihara, N., Mori, H., Fujii, N. |
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| Rok vydání: | 2023 |
| Zdroj: | XXVIII General Assembly of the International Union of Geodesy and Geophysics (IUGG) |
| DOI: | 10.57757/iugg23-0661 |
| Popis: | Fujii et al. conducted three-dimensional experiments to investigate the generation and propagation of tsunamis caused by landslides. They used granular materials or solid slide models as the landslides and switched between submarine and subaerial landslides by changing the initial water level. In this study, the two-layer model was validated using the results of their granular subaerial landslide experiments. Although calculated water levels using the original two-layer model based on the nonlinear shallow water equations significantly differed from the measurements, the addition of the dispersion term to the upper-layer equation resulted good agreement. The dispersive two-layer flow model can predict the water level of tsunamis caused by subaerial landslides comparable to the three-dimensional model, and is advantageous in terms of computational cost. The 28th IUGG General Assembly (IUGG2023) (Berlin 2023) |
| Databáze: | OpenAIRE |
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