Evaluation of turbulence closure models under spilling and plunging breakers in the surf zone
Date
2016-08-01Author
Brown, SA
Greaves, DM
Magar, V
Conley, DC
Subject
Spilling breakers Plunging breakers Turbulence models Computational Fluid Dynamics OpenFOAM Surf zone
Metadata
Show full item recordAbstract
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.
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Publisher
Elsevier BV
Journal
Coastal Engineering
Volume
114
Pagination
117-193
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