Evaluation of turbulence closure models under spilling and plunging breakers in the surf zone

S. A. Brown; D. M. Greaves; V. Magar; D. C. Conley

doi:10.1016/j.coastaleng.2016.04.002

Evaluation of turbulence closure models under spilling and plunging breakers in the surf zone

S. A. Brown^*, D. M. Greaves, V. Magar, D. C. Conley

^*Corresponding author for this work

Centro de Investigacion Cientifica y de Educacion Superior de Ensenada

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Abstract

Turbulence closure models are evaluated for application to spilling and plunging breakers in the surf zone using open source computational fluid dynamics software. A new library of turbulence models for application to multiphase flows has been developed and is assessed for numerical efficiency and accuracy by comparing against existing laboratory data for surface elevation, velocity and turbulent kinetic energy profiles. Out of the models considered, it was found that, overall, the best model is the nonlinear k - ϵ model. The model is also shown to exhibit different turbulent characteristics between the different breaker types, consistent with experimental data.

Original language	English
Pages (from-to)	117-193
Number of pages	0
Journal	Coastal Engineering
Volume	114
Issue number	0
Early online date	11 May 2016
DOIs	https://doi.org/10.1016/j.coastaleng.2016.04.002
Publication status	Published - 1 Aug 2016

Keywords

Spilling breakers
Plunging breakers
Turbulence models
Computational Fluid Dynamics
OpenFOAM
Surf zone

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10.1016/j.coastaleng.2016.04.002

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title = "Evaluation of turbulence closure models under spilling and plunging breakers in the surf zone",

abstract = "Turbulence closure models are evaluated for application to spilling and plunging breakers in the surf zone using open source computational fluid dynamics software. A new library of turbulence models for application to multiphase flows has been developed and is assessed for numerical efficiency and accuracy by comparing against existing laboratory data for surface elevation, velocity and turbulent kinetic energy profiles. Out of the models considered, it was found that, overall, the best model is the nonlinear k - ϵ model. The model is also shown to exhibit different turbulent characteristics between the different breaker types, consistent with experimental data.",

keywords = "Spilling breakers, Plunging breakers, Turbulence models, Computational Fluid Dynamics, OpenFOAM, Surf zone",

author = "Brown, {S. A.} and Greaves, {D. M.} and V. Magar and Conley, {D. C.}",

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T1 - Evaluation of turbulence closure models under spilling and plunging breakers in the surf zone

AU - Brown, S. A.

AU - Greaves, D. M.

AU - Magar, V.

AU - Conley, D. C.

PY - 2016/8/1

Y1 - 2016/8/1

N2 - Turbulence closure models are evaluated for application to spilling and plunging breakers in the surf zone using open source computational fluid dynamics software. A new library of turbulence models for application to multiphase flows has been developed and is assessed for numerical efficiency and accuracy by comparing against existing laboratory data for surface elevation, velocity and turbulent kinetic energy profiles. Out of the models considered, it was found that, overall, the best model is the nonlinear k - ϵ model. The model is also shown to exhibit different turbulent characteristics between the different breaker types, consistent with experimental data.

AB - Turbulence closure models are evaluated for application to spilling and plunging breakers in the surf zone using open source computational fluid dynamics software. A new library of turbulence models for application to multiphase flows has been developed and is assessed for numerical efficiency and accuracy by comparing against existing laboratory data for surface elevation, velocity and turbulent kinetic energy profiles. Out of the models considered, it was found that, overall, the best model is the nonlinear k - ϵ model. The model is also shown to exhibit different turbulent characteristics between the different breaker types, consistent with experimental data.

KW - Spilling breakers

KW - Plunging breakers

KW - Turbulence models

KW - Computational Fluid Dynamics

KW - OpenFOAM

KW - Surf zone

U2 - 10.1016/j.coastaleng.2016.04.002

DO - 10.1016/j.coastaleng.2016.04.002

M3 - Article

SN - 0378-3839

VL - 114

SP - 117

EP - 193

JO - Coastal Engineering

JF - Coastal Engineering

IS - 0

ER -

Evaluation of turbulence closure models under spilling and plunging breakers in the surf zone

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Keywords

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