Takahide Honda, Peter Wellens, Marcel Van Gent


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.


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

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DOI: http://dx.doi.org/10.9753/icce.v33.waves.71