Abstract
The wind effects on the evolution of a 2D dispersive focusing wave group are investigated using a two-phase flow model, which solves the Navier-Stokes equations for both air and water and captures the interface using the Volume of Fluid method. The turbulence is modeled by the standard Smagorinsky subgrid-scale stress model. The model predictions compare well with the experimental data without and with following wind action. Our model results show that the presence of following wind delays the wave group's focusing process and shifts the focus point downstream, while the presence of opposing wind slightly speeds up the focusing process and shifts the focus point upstream. The separate effects of wind-driven surface layer current on the wave group's evolution are examined. While both the depth-uniform and the strongly sheared drift current ould cause the same shift of the focus point, the latter current leads to better agreement with the experimental data.
Original language | English |
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Title of host publication | Proceedings of the 26th International Ocean and Polar Engineering Conference |
Publisher | International Society of Offshore and Polar Engineers |
Pages | 635-640 |
Number of pages | 6 |
ISBN (Electronic) | 9781880653883 |
Publication status | Published - Jan 2016 |
Event | 26th Annual International Ocean and Polar Engineering Conference 2016 - Rhodes, Greece Duration: 26 Jun 2016 → 1 Jul 2016 |
Conference
Conference | 26th Annual International Ocean and Polar Engineering Conference 2016 |
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Abbreviated title | ISOPE 2016 |
Country/Territory | Greece |
City | Rhodes |
Period | 26/06/16 → 1/07/16 |
Keywords
- Drift current
- Focusing wave group
- Freak wave
- Two-phase flow
- Wind effect
ASJC Scopus subject areas
- Energy Engineering and Power Technology
- Ocean Engineering
- Mechanical Engineering