A New Turbulence Model for Breaking Wave Simulations: Fid-Bau Portal

Fachinformationsdienst BAUdigital

A platform for research: civil engineering, architecture and urbanism

A New Turbulence Model for Breaking Wave Simulations

Benedetta Iele / Federica Palleschi / Giovanni Cannata / Francesco Gallerano

In this paper, the hydrodynamic and free surface elevation fields in breaking waves are simulated by solving the integral and contravariant forms of the three-dimensional Navier–Stokes equations that are expressed in a generalized time-dependent curvilinear coordinate system, in which the vertical coordinate moves by following the free surface. A new $k - l$ turbulence model in contravariant form is proposed; in this model, the mixing length, $l$ , is defined as a function of the maximum water surface elevation variation. A new original numerical scheme is proposed. The main element of originality of the numerical scheme consists of the proposal of a new fifth-order reconstruction technique for the point values of the conserved variables on the cell face. This technique, named in the paper as WTENO, allows the choice procedure of the reconstruction polynomials for the point values to be modified in a dynamic way.

Access

Page navigation

Document information

Export, share and cite

A New Turbulence Model for Breaking Wave Simulations

Benedetta Iele / Federica Palleschi / Giovanni Cannata / Francesco Gallerano

In this paper, the hydrodynamic and free surface elevation fields in breaking waves are simulated by solving the integral and contravariant forms of the three-dimensional Navier–Stokes equations that are expressed in a generalized time-dependent curvilinear coordinate system, in which the vertical coordinate moves by following the free surface. A new $k - l$ turbulence model in contravariant form is proposed; in this model, the mixing length, $l$ , is defined as a function of the maximum water surface elevation variation. A new original numerical scheme is proposed. The main element of originality of the numerical scheme consists of the proposal of a new fifth-order reconstruction technique for the point values of the conserved variables on the cell face. This technique, named in the paper as WTENO, allows the choice procedure of the reconstruction polynomials for the point values to be modified in a dynamic way.

A New Turbulence Model for Breaking Wave Simulations

Benedetta Iele / Federica Palleschi / Giovanni Cannata / Francesco Gallerano

In this paper, the hydrodynamic and free surface elevation fields in breaking waves are simulated by solving the integral and contravariant forms of the three-dimensional Navier–Stokes equations that are expressed in a generalized time-dependent curvilinear coordinate system, in which the vertical coordinate moves by following the free surface. A new $k - l$ turbulence model in contravariant form is proposed; in this model, the mixing length, $l$ , is defined as a function of the maximum water surface elevation variation. A new original numerical scheme is proposed. The main element of originality of the numerical scheme consists of the proposal of a new fifth-order reconstruction technique for the point values of the conserved variables on the cell face. This technique, named in the paper as WTENO, allows the choice procedure of the reconstruction polynomials for the point values to be modified in a dynamic way.

Access

Page navigation

Document information

Export, share and cite

Document information

Title:

A New Turbulence Model for Breaking Wave Simulations

Contributors:

Benedetta Iele (author) / Federica Palleschi (author) / Giovanni Cannata (author) / Francesco Gallerano (author)

Published in:

Water, Vol 14, Iss 13, p 2050 (2022)

Publication date:

2022

ISSN:

DOI:

https://doi.org/10.3390/w14132050

Type of media:

Article (Journal)

Type of material:

Electronic Resource

Language:

Unknown

Keywords:

wave breaking , turbulence model , turbulent kinetic energy , boundary layer , boundary conditions , Hydraulic engineering , TC1-978 , Water supply for domestic and industrial purposes , TD201-500

Metadata by DOAJ is licensed under CC BY-SA 1.0

Similar titles

Modelling Post-Wave Breaking Turbulence and Vorticity

Barnes, T. C. D. / Brocchini, M. / Peregrine, D. H. et al. | British Library Conference Proceedings | 1997

A Modified k – ε Turbulence Model for a Wave Breaking Simulation

Giovanni Cannata / Federica Palleschi / Benedetta Iele et al. | DOAJ | 2019

Free access

Effects of breaking wave induced turbulence within a longshore current model

Church, J. C. / Thornton, E. B. | British Library Online Contents | 1993

Effects of breaking wave induced turbulence within a longshore current model

Church, John Casey / Thornton, Edward B. | Elsevier | 1993

Near-Shore Wave Simulations with a Boussinesq-type Model Including Breaking

Borsboom, M. / Doorn, N. / Groeneweg, J. et al. | British Library Conference Proceedings | 2001