原文传递
Modeling Swash Zone Hydrodynamics Using Discontinuous Galerkin Finite-Element Method
| 题名： | Modeling Swash Zone Hydrodynamics Using Discontinuous Galerkin Finite-Element Method |
| 正文语种： | eng |
| 作者： | W. Aboulatta;N. Dodd;R. Briganti;T. H. M. A. Kasem;M. A. F. Zaki |
| 作者单位： | Faculty of Engineering Univ. of Nottingham NG7 2RD Nottingham UK;Coastal Dynamics Faculty of Engineering Univ. of Nottingham NG7 2RD Nottingham UK;Faculty of Engineering Univ. of Nottingham NG7 2RD Nottingham UK;Faculty of Engineering Cairo Univ. Giza 12613 Egypt;Engineering Mechanics Faculty of Engineering Cairo Univ.. Giza 12613. Egypt |
| 摘要： | A two-dimensional numerical model for the solution of the nonlinear shallow water equations (NSWEs) using the discontinuous Galerkin finite element method (DGFEM) is presented. A new adaptation of the thin-film approach is developed for the wetting/drying treatment. The model is applied to a number of test cases that can be characterized as swash flows, or as cases that are particularly useful for swash flow modeling. The DGFEM model shows robustness and provides accurate predictions of water depth, velocities, and shoreline movement. For the case of bore collapse on a plane beach the model performs well against a state-of-the-art finite volume swash code. The new wetting/ drying algorithm is tested against a previous algorithm within the same framework for simulating a solitary wave propagating on a beach with bottom friction, showing a noticeable improvement in the shoreline prediction. The model is also tested against a more subtle test case, including generation of subharmonic edge waves, in order to test the effectiveness of DGFEM in reproducing second-order effects. The model simulates the excitation and development of the subharmonic edge waves when compared with the analytical solutions in the literature. Overall, it is shown here for the first time that the DGFEM technique can be used to simulate accurately a wide range of swash zone flows and therefore swash zone processes. |
| 出版年： | 2021 |
| 期刊名称： | Journal of Waterway, Port, Coastal, and Ocean Engineering |
| 卷： | 147 |
| 期： | 2 |
| 页码： | 04020051.1-04020051.12 |
相关文献
- Discussion of "Complex Perturbation Method for Sensitivity Analysis of Nonlinear Trusses" by Ravi Kiran, Lei Li, and Kapil Khandelwal
- Closure to "Lateral Load-Drift Response and Limit States of Posttensioned Steel Beam-Column Connections: Parametric Study" by Saber Moradi and M. Shahria Alam
- Dry-Stack Masonry Wall Modeling Using Finite-Element Method
- Numerical Modeling of Flow and Bed Evolution of Bichromatic Wave Groups on an Intermediate Beach Using Nonhydrostatic XBeach
- Finite-Element Modeling of Reinforced Additively Constructed Concrete Structures
- Periodic Assembly of Steel Truss Systems for Efficient Analyses and Early Detection of Localized Damage Using Impulse Response Method
检索历史
应用推荐
