A Case Study of Nearshore Wave Transformation Processes along the Coast of Mexico near the Laguna Verde Nuclear Power Plant Using a Fast Simulation Method

Herrera-Díaz, Israel E.; Couder-Castañeda, Carlos; Ramírez-León, Hermilo

doi:10.1155/2010/690786

Cited by 3 publications

(3 citation statements)

References 7 publications

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“…Rodríguez et al [44] applied the numerical model to predict two types of island wakes, and the results showed good agreement with the experiments. More details about the present numerical model and other applications are given in [45][46][47].…”

Section: Numerical Modelmentioning

confidence: 99%

Multilayer Numerical Modeling of Flows through Vegetation Using a Mixing-Length Turbulence Model

Barrios-Piña¹,

Ramírez-León

Rodríguez-Cuevas

et al. 2014

Water

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This work focuses on the effects of vegetation on a fluid flow pattern. In this numerical research, we verify the applicability of a simpler turbulence model than the commonly used k-ε model to predict the mean flow through vegetation. The novel characteristic of this turbulence model is that the horizontal mixing-length is explicitly calculated and coupled with a multi-layer approach for the vertical mixing-length, within a general three-dimensional eddy-viscosity formulation. This mixing-length turbulence model has been validated in previous works for different kinds of non-vegetated flows. The hydrodynamic numerical model used for simulations is based on the Reynolds-averaged Navier-Stokes equations for shallow water flows, where a vegetation shear stress term is considered to reproduce the effects of drag forces on flow. A second-order approximation is used for spatial discretization and a semi-implicit Lagrangian-Eulerian scheme is used for time discretization. In order to validate the numerical results, we compare them against experimental data reported in the literature. The comparisons are carried out for two cases of study: submerged vegetation and submerged and emergent vegetation, both within an open channel flow.

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Section: Numerical Modelmentioning

confidence: 99%

Multilayer Numerical Modeling of Flows through Vegetation Using a Mixing-Length Turbulence Model

Barrios-Piña¹,

Ramírez-León

Rodríguez-Cuevas

et al. 2014

Water

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“…In coastal and estuary regions large-scale vortices in the water occur due to the effects caused by the water hitting structures such as breakwaters and islands [1]. Studying these vortices is of great interest to environmental engineers because they have great influence on silt and other solutes transportation.…”

Section: Introductionmentioning

confidence: 99%

“…Rodriguez et al [16,17] studied mixing-length models focusing on the shallow waters vortices formation dynamics. Some of the applications show the quality and the capabilities of the developed numerical model, and the mixing-length model reproduced the behavior of dispersion of pollutants in water patterns satisfactorily albeit with some simplifications [1,[18][19][20]. From the literature we can conclude that a 3D volume control model is appropriate to reproduce wakes accurately, and more accurately describe the solution of shallow waters equations [21,22].…”

Section: Introductionmentioning

confidence: 99%

Modelling Shallow Water Wakes Using a Hybrid Turbulence Model

Rodríguez-Cuevas

Couder-Castañeda

Flores-Mendez

et al. 2014

Journal of Applied Mathematics

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A numerical research with different turbulence models for shallow water equations was carried out. This was done in order to investigate which model has the ability to reproduce more accurately the wakes produced by the shock of the water hitting a submerged island inside a canal. The study of this phenomenon is important for the numerical methods application advancement in the simulation of free surface flows since these models involve a number of simplifications and assumptions that can have a significant impact on the numerical solutions quality and thus can not reproduce correctly the physical phenomenon. The numerical experiments were carried out on an experimental case under controlled conditions, consisting of a channel with a submerged conical island. The numerical scheme is based on the Eulerian-Lagrangian finite volume method with four turbulence models, three mixing lengths (ml), and one joining -on the horizontal axis with a mixing-length model (ml) on the vertical axis. The experimental results show that a -with ml turbulence model makes it possible to approach the experimental results in a more qualitative manner. We found that when using only a -model in the vertical and horizontal direction, the numerical results overestimate the experimental data. Additionally the computing time is reduced by simplifying the turbulence model.

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Modelación numérica de la descarga térmica de la Central Nucleoeléctrica Laguna Verde

Ramírez-León¹,

Couder-Castañeda²,

Herrera-Díaz³

et al. 2013

Revista Internacional de Métodos Numéricos para Cálculo y Diseñ

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A Case Study of Nearshore Wave Transformation Processes along the Coast of Mexico near the Laguna Verde Nuclear Power Plant Using a Fast Simulation Method

Cited by 3 publications

References 7 publications

Multilayer Numerical Modeling of Flows through Vegetation Using a Mixing-Length Turbulence Model

Multilayer Numerical Modeling of Flows through Vegetation Using a Mixing-Length Turbulence Model

Modelling Shallow Water Wakes Using a Hybrid Turbulence Model

Modelación numérica de la descarga térmica de la Central Nucleoeléctrica Laguna Verde

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