Simulations of wave interaction with coastal structures

1995 ◽  
Vol 32 (7) ◽  
pp. 343
Keyword(s):  
Wave Interaction ◽  
Coastal Structures

scholarly journals FORCES INDUCED ON A VERTICAL BREAKWATER BY INCIDENT OBLIQUE WAVES

2012 ◽  
Vol 1 (33) ◽  
pp. 14
Author(s):  
Javier Lara ◽  
Pablo Higuera ◽  
Maria Maza ◽  
Manuel Del Jesus ◽  
Inigo J. Losada ◽  
...  
Keyword(s):  
Wave Train ◽  
Three Dimensional ◽  
Wave Interaction ◽  
Two Dimensions ◽  
Navier Stokes ◽  
Coastal Structures ◽  
Vast Number ◽  
Dimensional Effects ◽  
Model Predictions ◽  
Vertical Breakwater

Over the last years Navier-Stokes numerical models have been developed to accurately simulate wave interaction with all kinds of coastal structures, focusing on both functionality and stability of coastal structures. Although several models have been used to simulate wave interaction with coastal structures in two dimensions (2DV) there are a vast number of three-dimensional effects that need to be investigated in order to improve the design. In this paper a new model called IH-FOAM has been applied to study a vertical breakwater at prototype scale. As a first attempt of validation, the model has been used to simulate a regular wave train generated with a relative angle with the breakwater inducing three-dimensional wave patterns not only seaward the structure due to reflection but also generating an overtopping discharge variation along the breakwater trunk. Pressure laws and overtopping discharge at three different cross-sections along the structure have been studied. The pressure laws have been compared with classical Goda’s formulation. Although, the numerical model predictions are in accordance with Goda’s calculations, a clear three-dimensional variability of wave-induced pressure has been observed. Moreover, an additional study has been performed calculating pressure laws on the side-wall at the breakwater head. Large three-dimensional effects are detected from the simulations due to the flow separation at that area. Overtopping model predictions have been compared with Overtopping Manual calculations showing very close values along the trunk. However, lower overtopping discharge values are observed at the breakwater head. This paper is a preliminary work to show the range of applicability of a three-dimensional Navier-Stokes model to study wave interaction with a vertical breakwater under the action of an oblique wave train.

Boussinesq cut‐cell model for non‐linear wave interaction with coastal structures

2008 ◽  
Vol 57 (10) ◽  
pp. 1459-1483 ◽  
Author(s):  
D. Z. Ning ◽  
J. Zang ◽  
Q. Liang ◽  
P. H. Taylor ◽  
A. G. L. Borthwick
Keyword(s):  
Cell Model ◽  
Wave Interaction ◽  
Linear Wave ◽  
Coastal Structures ◽  
Cut Cell ◽  
Non Linear

scholarly journals Wind-Wave Interaction in Sengguruh Reservoir and The Effect to Riprap Material

2021 ◽  
Vol 930 (1) ◽  
pp. 012070
Author(s):  
J Fidari
Keyword(s):  
Side Effects ◽  
High Risk ◽  
Wind Wave ◽  
Wave Interaction ◽  
Dam Safety ◽  
Coastal Structures ◽  
Safety Standards ◽  
Water Interaction ◽  
Large Dams ◽  
Public Company

Abstract The Sengguruh Dam is one of the large dams managed by Jasa Tirta I Public Company. This reservoir has been operating for more than 38 years (operating since 1982 and the latest data is for 2020). This research was conducted to determine the effect of wind and the interaction of wind on the water in the Sengguruh Dam. Most of the interaction of water and wind is mostly carried out on coastal structures but rarely investigated in the upstream area of the river basin. Investigations were carried out to obtain an overview and characteristics of the influence of the two variables of wind and water on the hydraulics of the reservoir storage, sedimentation in the water column, and side effects of the embankment material in the riprap dam. This study will provide an overview of the condition of the Sengguruh Dam which is full of sediment and shows the wind and water interaction that occurs in the reservoir as well as the potential hazards that are quite large for the management of water resources and disasters in the surrounding community if there is a high risk or threat that occurs if these conditions do not meet dam safety standards in Indonesia.

MODELING OF WAVE INTERACTION WITH COMPLEX COASTAL STRUCTURES USING AN ENHANCED VOF MODEL

2005 ◽  
Author(s):  
FENGYAN SHI ◽  
QUN ZHAO ◽  
JAMES T. KIRBY ◽  
DAL SOO LEE ◽  
SEUNG NAM SEO
Keyword(s):  
Wave Interaction ◽  
Coastal Structures ◽  
Vof Model

scholarly journals NUMERICAL MODELING OF NON-BREAKING, IMPULSIVE BREAKING, AND BROKEN WAVE INTERACTION WITH ELEVATED COASTAL STRUCTURES

2018 ◽  
pp. 31
Author(s):  
Hyoungsu Park ◽  
Trung Do ◽  
Tori Tomiczek ◽  
Daniel T. Cox ◽  
John W. Van de Lindt
Keyword(s):  
Wave Interaction ◽  
The United States ◽  
Analytic Solutions ◽  
Coastal Structures ◽  
The Past ◽  
Cfd Models ◽  
Benchmark Tests ◽  
Physical Experiments ◽  
History Of ◽  
Computational Fluid Dynamics Cfd

Hurricanes generate elevated surge levels and strong waves that can cause extensive damage to buildings and other coastal infrastructure, especially those located in low-lying coastal regions. The history of recorded damage on buildings near the shoreline from past storms indicates that the intensity of storms and resulting damage has increased over the past 30 years (Emanuel, 2005). For example, the United States has been impacted by recent events such as Hurricanes Katrina (2005), Ike (2008), Sandy (2012), and Harvey (2017). Computational Fluid Dynamics (CFD) models have been widely developed and applied to estimate the wave pressure and forces; advances in recent years have been supported by an increase in computation power, which allows more detailed calculations of the complex hydrodynamics associated with wave action. The performance of CFD models must be validated or verified through detailed comparisons with benchmark tests (e.g. analytic solutions or physical experiments).

scholarly journals NUMERICAL MODELING OF WAVE INTERACTION WITH A NON-CONVENTIONAL BREAKWATER FOR WAVE ENERGY CONVERSION

2018 ◽  
pp. 64
Author(s):  
Enrico Di Lauro ◽  
Maria Maza ◽  
Javier L. Lara ◽  
Inigo J. Losada ◽  
Diego Vicinanza
Keyword(s):  
Energy Conversion ◽  
Wave Energy ◽  
Wave Interaction ◽  
Electrical Energy ◽  
Water Levels ◽  
Electricity Production ◽  
Coastal Structures ◽  
Wave Energy Converters ◽  
Important Benefit ◽  
Low Head

The hybrid non-conventional breakwaters are innovative coastal structures, which have as a primary function the coastal and harbours protection, but with the important benefit of electricity production, due to their combination with Wave Energy Converters. The most recent example of a non-conventional breakwater is called OBREC, standing for Overtopping Breakwater for Energy Conversion (Vicinanza et al., 2014). The device consists of a traditional rubble mound breakwater, in which the seaward armour layer in the upper part is replaced with a frontal sloping ramp and a reservoir. The structure is designed to capture and gather the water that overtops the crest ramp. The potential energy of the water stored in the reservoir is converted into kinetic energy and then into electrical energy by flowing through low head hydraulic turbines coupled with generators, exploiting the different water levels between the reservoir and the sea level.

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