A Numerical Model for Calculating Wave Height Distribution in a Harbor of Arbitrary Shape

Sato, Noriyuki; Isobe, Masahiko; Izumiya, Takashi

doi:10.1080/05785634.1990.11924528

Cited by 8 publications

(5 citation statements)

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“…A comparison of the qualitative type of the results obtained from the modelling is presented in Figure 3 with the Figure 1; analysing the resulting values of the wavelength model, they present a 5% decrease compared with those originally presented by Sato et al [27], the reason was that a coefficient of 1 was used because the heights with the suggested coefficient they gave very small values to those presented by this author, later other reflection coefficients other than those originally used were tested to check the…”

Section: Sea Surge Model Description the Equation Developed Bymentioning

confidence: 56%

“…The x-direction phases, the proper condition for Equation ( 7) at i = 1 and i = n i along the line (y = j × Δy + 1/2) is determined as: [27] about wave height in the study of a physical model of a port (Figure 1), where the geometry of the port presents conditions of complicated borders that more closely resemble the reality of a port.…”

Section: Sea Surge Model Description the Equation Developed Bymentioning

confidence: 99%

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Numerical Modelling of Free Surface Agitation in a Coastal Lagoon by Roadway Path Influence

Herrera-Díaz

Torres-Bejarano

Moreno-Martínez

et al. 2023

Modelling and Simulation in Engineering

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The development and construction of highway infrastructure are essential in developing countries, whereas its layout and construction sometimes interact with the coastal environment. One problem to attend to is that the outline and geometry designs impact as little as possible on the hydrodynamic circulation of coastal bodies in order to alter the associated ecosystem as little as possible. The study area is located in the north of Colombia, and is made up of a continental coastal zone (Mallorquín Lagoon) and a marine zone (Caribbean Sea), in which a highway is projected that provides communication between two locations. This study presents the application of a numerical model previously developed and modified by the Berkhoff equation, which is developed in a finite difference scheme and has been validated and applied in different works in coastal and fluvial shallow water areas. The application of the model was carried out in a hydrodynamic circulation research project for a one-way highway through a coastal lagoon, where the knowledge of the magnitude of the incident wave height in the structure of the road body is necessary for the design, protection elements, and road geometry. Two numerical simulation scenarios were carried out, specifying normal conditions and extraordinary wave conditions in the month of November with a simulation time of 15 days, obtaining the velocity field associated with coastal currents, waves, and wave modification phenomena, such as refraction, diffraction, and reflection, which provide the height of the incident wave on the highway and the recirculation patterns in the coastal lagoon to identify alterations in the ecosystem. The results of the wave height in each scenario and the velocity field provide values to be used in the design, type of armor, and dimensions of the protection works required for the proper functioning of the road structure.

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Section: Sea Surge Model Description the Equation Developed Bymentioning

confidence: 56%

Section: Sea Surge Model Description the Equation Developed Bymentioning

confidence: 99%

Numerical Modelling of Free Surface Agitation in a Coastal Lagoon by Roadway Path Influence

Herrera-Díaz

Torres-Bejarano

Moreno-Martínez

et al. 2023

Modelling and Simulation in Engineering

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“…The u and v are then transformed back to the global co-ordinate system. Work is currently undergoing on implementing partially re ective boundaries by incorporating an energy-dissipative region in front of the wall [18]. The width and dissipation factor within this layer a ect the absorbed and re ected energy.…”

Section: Fully Re Ective (Impermeable Wall) Boundary Conditionsmentioning

confidence: 99%

Solution of the hyperbolic mild‐slope equation using the finite volume method

Bokaris

Anastasiou

2002

Numerical Methods in Fluids

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SUMMARYA ÿnite volume solver for the 2D depth-integrated harmonic hyperbolic formulation of the mild-slope equation for wave propagation is presented and discussed. The solver is implemented on unstructured triangular meshes and the solution methodology is based upon a Godunov-type second-order ÿnite volume scheme, whereby the numerical uxes are computed using Roe's ux function. The eigensystem of the mild-slope equations is derived and used for the construction of Roe's matrix. A formulation that updates the unknown variables in time implicitly is presented, which produces a more accurate and reliable scheme than hitherto available. Boundary conditions for di erent types of boundaries are also derived. The agreement of the computed results with analytical results for a range of wave propagation=transformation problems is very good, and the model is found to be virtually paraxialityfree.

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“…Ce modèle permet notamment de traiter la réflexion partielle de la houle sur les ouvrages. Cette démarche a déjà été entreprise par certains auteurs comme Sato et al (1990) et Dalrymple et al (1991). Les modèles utilisés par ces auteurs sont basés sur l'équation de pente douce avec un terme dissipatif supplémentaire.…”

Section: Modèle Horizontalunclassified