Numerical Modelling of Regular Waves Propagation and Breaking Using Waves2Foam

Chenari, Behrang; Saadatian, Shiva; Ferreira, Almerindo D.

doi:10.7763/jocet.2015.v3.208

Cited by 8 publications

(2 citation statements)

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“…The analysis performed by Conde (2019) and the comparisons carried out by Jacobsen (2021) showed that WF does not introduce any spurious reflection in the numerical domain, allowing simulations of longer duration and ensuring the stability of the implemented wave conditions. Furthermore, it has been extensively validated and used for coastal engineering applications, such as water wave propagation and/or wave-structure interactions (El Safti and Oumeraci, 2013;Paulsen et al, 2014a;2014b;Jensen et al, 2014;Chenari et al, 2015;Jacobsen et al, 2015). For these reasons, WF was preferred to the native OF's solver to perform the wave generation in the new CWF code.…”

Section: Reference Solversmentioning

confidence: 99%

Statistical assessment of the wave loads at walls through two-phase CFD modeling of the effects of air compressibility

Formentin,

Palma,

Alcérreca Huerta

et al. 2023

Front. Built Environ.

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The modeling of wave impacts against coastal structures requires the analysis of hundreds or thousands of waves to be statistically meaningful. Long irregular wave attacks, when affordable, can be performed experimentally, but may be inadequate to track the air entrapment and account for air compressibility, which, instead, plays a key role in the wave impacts. On the other hand, long simulations are generally avoided in numerical modeling for computational effort and numerical stability reasons, even more so when two-phase flows and air compressibility are involved. In such a context, this paper presents, for the first time, the application of a plug-in suite developed in the OpenFOAM® environment to the representation of long time series of irregular waves impacting against coastal defenses while solving two compressible fluids. To this purpose, such a plug-in compressible suite was applied to reproduce recent 2D experiments of wave overtopping and wave impacts at smooth dikes with crown walls. The numerical stability of the compressible solver and its adequacy to accurately reproduce the wave reflection and the wave overtopping are first verified by comparing the numerical results with the laboratory tests. Second, the improved representation of the wave pressures and wave forces at the walls obtained with the plug-in compressible suite is shown by comparing its results with the corresponding ones obtained with the incompressible solver. Specifically, the plug-in suite—accounting for the effects of the air compressibility during the impact events—outperforms the incompressible native solver in the capture of the pressure peaks, in the reproduction of the time–pressure trace, and in the statistical analysis of the pressure distribution along the crown wall.

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Section: Reference Solversmentioning

confidence: 99%

Statistical assessment of the wave loads at walls through two-phase CFD modeling of the effects of air compressibility

Formentin,

Palma,

Alcérreca Huerta

et al. 2023

Front. Built Environ.

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“…The wave group was extraordinarily well captured during the propagation, shoaling and breaking process. Chenari et al (2015) For better understanding wave properties on the special reef bathymetry, especially the reef slope's affects which is inconvenient and expensive for physical model tests, numerical modelling with Waves2Foam is used to simulate wave propagation over a submerged reef in this present paper. The model is first validated by comparing the numerical results with experimental data.…”

Section: Introductionmentioning

confidence: 99%

Numerical investigation of wave propagation and transformation over a submerged reef

Zang

Liu

et al. 2019

Coastal Engineering Journal

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In this paper, wave transformation over a submerged reef has been numerically studied based on the OpenFOAM model. This numerical model solves the Reynolds-Averaged Navier-Stokes equations for two-phase flow, and employs the volume of fluids (VOF) method for the free surface. The k-ω SST turbulence model is used to simulate wave breaking and the wave generation library waves2Foam is adopted to generate waves in the model. The numerical model is first validated against the physical experimental data, and it is shown that the model is capable of simulating the key processes of wave shoaling, breaking and transmission over the submerged reef. Then, a series of numerical tests are conducted considering different incident wave heights, submergences and slopes of the reef. The influences of reef slope and submergence on the wave properties over the reef are discussed, which include the wave reflection and transmission coefficients, breaking wave height, wave induced setup and energy dissipation.

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