Numerical modeling of non-breaking, impulsive breaking, and broken wave interaction with elevated coastal structures: Laboratory validation and inter-model comparisons

2018 ◽  
Vol 158 ◽  
pp. 78-98 ◽  
Author(s):  
Hyoungsu Park ◽  
Trung Do ◽  
Tori Tomiczek ◽  
Daniel T. Cox ◽  
John W. van de Lindt
Keyword(s):  
Numerical Modeling ◽  
Wave Interaction ◽  
Coastal Structures ◽  
Model Comparisons

scholarly journals ABOUT SOME UNCERTAINTIES IN THE PHYSICAL AND NUMERICAL MODELING OF WAVE OVERTOPPING OVER COASTAL STRUCTURES

2014 ◽  
Vol 1 (34) ◽  
pp. 71 ◽  
Author(s):  
Alessandro Romano ◽  
Hannah Elisabeth Williams ◽  
Giorgio Bellotti ◽  
Riccardo Briganti ◽  
Nicholas Dodd ◽  
...  
Keyword(s):  
Numerical Modeling ◽  
Coastal Structures ◽  
Wave Overtopping

Numerical Modeling of Wave Interaction with Porous Structures

2001 ◽  
Vol 127 (2) ◽  
pp. 123-124
Author(s):  
L. A. Giménez-Curto ◽  
M. A. Corniero Lera ◽  
Philip L.-F. Liu ◽  
Pengzhi Lin ◽  
Kuang-An Chang ◽  
...  
Keyword(s):  
Numerical Modeling ◽  
Wave Interaction ◽  
Porous 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.

scholarly journals Numerical Modeling of Sediment Transport Rate and Shoreline Changes of Jazireh-e Shomali-Jonoubi Port in the Persian Gulf

2020 ◽  
Vol 64 (2) ◽  
pp. 39-45
Author(s):  
Milad Bamdadi Nejad ◽  
◽  
Mohammad Javad Ketabdari ◽  
Farhad Shojaei ◽  
◽  
...  
Keyword(s):  
Numerical Modeling ◽  
Sediment Transport ◽  
Satellite Images ◽  
Morphological Changes ◽  
Wave Climate ◽  
Coastal Structures ◽  
Shoreline Changes ◽  
The Persian Gulf ◽  
Management Operation ◽  
Good Agreement

Studying the sediments and predicting the coastal morphological changes have wide applications in coastal engineering, including coastal management, operation, and design of the structures as well as their maintenance, development, and expansion of coasts and coastal structures, which are of paramount importance. This study aims to model the shoreline changes around the Jazireh-e Shomali-Jonoubi Port, calculate the amount of advancement and recession due to the construction of the breakwater, and to determine the areas exposed to erosion and sedimentation. To this end, a series of primary information, including aerial and satellite images, hydrographic and topographic maps, and the specifications and grading of the sediment of the considered coast, has been collected and the overall morphology of the area has been determined. The input data into the model include a 12-year time series of the wave (height, period, and direction of the wave) and the wave climate. The length of the shoreline is 4 km and a profile perpendicular to the coast with a length of 1500 m has been applied to the model. Finally, using numerical modeling, the net and gross potential rates of annual and cumulative sediment transport, as well as shoreline changes after 12 years, were simulated. The effect and length of sedimentation behind the port’s breakwater after 1, 5, 10 and 12 years are 81, 190, 247 and 267 meters, respectively, which is in good agreement with the actual observations. Because the length of the breakwaters is 300 meters, the sedimentation problem has not yet been established for the port after 12 years.

scholarly journals Numerical Modeling of Wave Interaction with Double Curtain-wall Breakwater

2015 ◽  
Vol 116 ◽  
pp. 1009-1018 ◽  
Author(s):  
Yuliang Zhu ◽  
Yu Li ◽  
Aifeng Tao ◽  
Jisheng Zhang
Keyword(s):  
Numerical Modeling ◽  
Wave Interaction ◽  
Curtain Wall

Numerical Modeling Of The Ignition Initiation In The Scramjet Combustion Chamber Via Detonation

2016 ◽  
Vol 11 (4) ◽  
pp. 33-44
Author(s):  
Igor Bedarev ◽  
Valentin Temerbekov ◽  
Aleksandr Fedorov ◽  
Kristina Rylova
Keyword(s):  
Numerical Modeling ◽  
Detonation Wave ◽  
Combustion Chamber ◽  
Wave Interaction ◽  
Kinetic Scheme ◽  
Reacting Flow ◽  
Mixing Process ◽  
Detonation Tube ◽  
Cellular Detonation ◽  
Air Mixing

The paper studies of the cellular detonation wave interaction with supersonic reacting flow in the scramjet combustion chamber. Comparing the flow fields for the details and the reduced chemical kinetics models is allowed verifying the acceptability of the proposed simplified kinetic scheme. The possibility of using pulsating detonation for the ignition intensification in the scramjet combustion chamber is shown. Calculation of the detonation wave interaction with nonpremixed hydrogenair mixture is made. The ability to influence on the hydrogen-air mixing process by means of detonation tube is detected. The effect of tube sizes to intensification of hydrogen air mixing in the flow at channel with a cavity is calculated.

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