Tran-SET 2020
Generation of Periodic Wave Using Lagrange-Plus Remap Finite Element Method for Evaluating the Vulnerability of Coastal Bridges to Extreme Weather Events
Publication: Tran-SET 2020
ABSTRACT
The study of the vulnerability of coastal bridges due to wave impacts through numerical methods requires the correct generation of nonlinear, long-period waves at shallow water conditions. In this paper, waves are generated using the first-order wave theory based on the “Lagrange-plus-remap” finite element method. The free surface elevation was obtained as a function of space and time. The accuracy and the stability of the generated waves, and the boundary condition effects on the results were analyzed in this study. The generated wave has been observed to slightly deviate from the analytical solution in terms of amplitude and phase. The outlet surface has been observed to cause wave reflections that affect the profile of the incoming waves. A Fourier analysis revealed that initial disturbances dissipate as the wave progresses, making the generated wave stable.
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Published In
Tran-SET 2020
Pages: 133 - 140
Editors: Craig Newtson, Ph.D., New Mexico State University, Susan Bogus Halter, Ph.D., University of New Mexico, and Marwa Hassan, Ph.D., Louisiana State University
ISBN (Online): 978-0-7844-8330-5
Copyright
© 2021 American Society of Civil Engineers.
History
Published online: Jan 12, 2021
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