WAVE MOTION NEAR A BREAKWATER ROUNDHEAD

Takahide Honda, Peter Wellens, Marcel Van Gent

Abstract


COMFLOW is a general 3D free-surface flow solver. The numerical method is based on the Navier-Stokes equations in a porous medium, with additional force terms to represent the (turbulent) interaction of the flow with the medium. The free surface is displaced by means of the Volume-Of-Fluid method. The main objective in this paper is to validate the permeable flow model in 3D. Tailor-made physical model tests were performed for this purpose. In the experiment surface elevations are measured inside and around a permeable structure with 18 wave gauges in total. The measurements are represented well by the simulation results.

Keywords


VOF; Navier-Stokes; permeable flow; rubble-mound breakwater; physical model tests

References


Honda, T., P.R.Wellens and M.R.A. van Gent. 2011. Numerical Simulations for Wave Overtopping by Irregular Waves, 5th International Conference on Advanced Computational Methods in Engineering, Liege, Belgium

Kleefsman, K.M.T., G. Fekken, A.E.P. Veldman, B. Iwanowski, and B. Buchner. 2005. A Volume-of-Fluid based simulation method for wave impact problems, Journal of Computational Physics, 206(1): 363–393.http://dx.doi.org/10.1016/j.jcp.2004.12.007

Rienecker, M.M. and J.D. Fenton. 1981. A Fourier Approximation Method For Steady Water-Waves, Journal of Fluid Mechanics, 104(MAR):119–137, 1981.http://dx.doi.org/10.1017/S0022112081002851

Seelig, W.N. and J.P. Ahrens. 1981. Estimation of wave reflection and energy dissipation coefficients for beaches, revetments and breakwaters, TP81-1, CERC, US Army Corps of Engrs, Vicksburg, MS.http://dx.doi.org/10.5962/bhl.title.47482

Van Gent, M.R.A. 1995. Porous flow through rubble mound material, J. of Waterway, Port, Coastal and Ocean Engineering, Vol.121, no.3, pp.176-181, ASCE, New York.http://dx.doi.org/10.1061/(ASCE)0733-950X(1995)121:3(176)

Verstappen, R.W.C.P. and A. E. P. Veldman. 2003. Symmetry-preserving discretization of turbulent flow, Journal of Computational Physics, 187(1):343–368.http://dx.doi.org/10.1016/S0021-9991(03)00126-8

Wellens, P.R., R. Luppes, A.E.P. Veldman and M.J.A. Borsboom. 2009. CFD Simulations of a Semi-Submersible with Absorbing Boundary Conditions, Proceedings of OMAE 2009, Honolulu.

Wellens, P.R., M.J.A. Borsboom and M.R.A. van Gent. 2010. 3D simulation of wave interaction with permeable structures, Proceedings of 32nd International Conference on Coastal Engineering, Shanghai, China.

PMCid:2881346

Wenneker, I., P.R.Wellens and R. Gervelas. 2010. Volume-of-Fluid model COMFLOW simulations of wave impacts on a dike, Proceedings of 32nd International Conference on Coastal Engineering, Shanghai, China.

PMid:21534463


Full Text: PDF

Creative Commons License
This work is licensed under a Creative Commons Attribution 3.0 License.