Simulation of Tsunami Waves Using Mike 3 Flow Model FM

Articles in Press

Document Type : Research Paper

Authors

Department of Water Engineering, Urmia University, Urmia, Iran.

Abstract

Tsunamis are a series of ocean waves with exceptionally long wavelengths and can be incredibly destructive when they reach coastal areas. These waves are typically triggered by underwater earthquakes, volcanic eruptions, or landslides. The immense force and energy of a tsunami wave can result in widespread devastation, flooding, and loss of life. It is crucial to comprehend the behavior of tsunami waves in order to develop effective early warning systems and strategies for managing such disasters. Numerical modeling has become a valuable tool for simulating the propagation of tsunamis and the processes of inundation. This research focuses on utilizing the Mike3 Flow Model FM for numerical modeling of tsunami waves. The model was tested using the results of solitary wave theory solutions and basic tsunami wave experiments conducted at the hydraulic laboratory of Changsha University in China. Statistical analysis of the numerical simulation results showed that the Mike3 Flow Model FM can provide accurate calculation of complex tsunami wave flows and deliver important results such as tsunami wave height, wave run-up length, flow volume, and temporal-spatial velocity profiles. Notably, the study observed an improvement in the accuracy of the numerical model as the ratio of wave height to water depth (H/h) decreased. Furthermore, it was confirmed that the accuracy of the numerical model in simulating wave velocity (RMSE ≤ 0.14) surpassed its performance in simulating wave surface elevation (RMSE ≤ 2.29), compared to experimental data.

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References

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Journal of Hydraulic Structures

Articles in Press, Accepted Manuscript
Available Online from 22 October 2024

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