Towards modelling wave-induced forces on an armour layer unit of rubble mound coastal revetments

Wave-induced forces on an armour layer unit are key parameters for assessing the stability of rubble mound coastal revetment, but how to predict them accurately and efficiently remains open question. This study explores feasibility using Morison-type equation convert numerically simulated porous media flow in into a single unit. Wave flume tests conducted, which cuboid placed sloped revetment were measured. In conjunction, numerical simulations performed OpenFOAM solver, treats as media. The validated simulation was synchronized with force measurement illustrate correlations between predicted impact force. Based these correlations, predictor, consists inertial force, drag pressure gradient lift is proposed. calibrated model can reasonably approximate temporal variation wave-induced However, it found that coefficients vary significantly dynamic number initial submergence Additional research required give sufficiently large dataset calibrating empirical formulae.