原文传递
Design of Detached Emerged and Submerged Breakwaters for Coastal Protection: Development and Application of an Advanced Numerical Model
| 题名： | Design of Detached Emerged and Submerged Breakwaters for Coastal Protection: Development and Application of an Advanced Numerical Model |
| 正文语种： | 英文 |
| 作者： | Alexandros-Charalampos Tsiaras;Theofanis Karambas;D. Koutsouvela |
| 作者单位： | Dept, of Hydraulics and Environmental Engineering, Aristotle Univ |
| 摘要： | An advanced fully hydro- and morphodynamic two-dimensional horizontal (2DH) numerical model, describing the processes of nonlinear wave propagation, sediment transport, and morphological changes and being suitable for the design of structures for coastal pro-tection against erosion, has been developed and tested here. The Boussinesq-type equations, including nonlinear higher-order terms, which can enhance a model's behavior regarding highly nonlinear wave propagation in the nearshore region, including the swash zone, are used. The bed load and sheet flow transport rate are estimated using a quasi-steady formulation for waves and currents. Both phase-lag and accel-eration effects are included in the formula. The suspended sediment transport rate is estimated by solving the depth-integrated transport equation for suspended sediment. Model predictions are compared with laboratory data and field measurements (breaking wave-induced current field and morphological changes associated with emerged and submerged detached breakwaters). Numerical results and data are in satisfactory agreement. In the case of emerged detached breakwaters, the well-known criteria for tombolo or salient formation (based on empirical design guidelines) agree with the model predictions. The methodology is also applied to simulate the morphological changes behind submerged breakwaters, resulting in useful conclusions concerning the role of the transmission coefficient and the net mass influx over the breakwater. The developed model can be used for the design of emerged and submerged detached breakwaters. |
| 出版日期： | 2020.07-08 |
| 出版年： | 2020 |
| 期刊名称： | Journal of Waterway, Port, Coastal, and Ocean Engineering |
| 卷： | Vol.146 |
| 期： | No.04 |
| 页码： | 04020012 |
相关文献
- Tsunami Impact on a Detached Breakwater:Insights from Two Numerical Models
- Trunk and Head Damage on a Low-Crested Breakwater
- Hydrodynamic Performance of Fixed Floating Structures Coupled with Submerged Breakwaters Using the Multidomain Boundary Element Method
- Comparison of Revetment and Sill in Reducing Shore Erosion and Wave Overtopping
- Enabling Network-Wide Tolling-Strategy Assessment via Customized Route-Choice Simulation Module
- Numerical Modeling of Coastal Waves and Nearshore Currents on Adaptive Quadtree Grids
检索历史
应用推荐
