Experimental and Numerical Investigation of Beach Slope Effects on the Hydrodynamic Loading of Tsunami-like Surges on a Vertical Wall

Over the past decades, hydraulic surge generated by dam-break waves has been used to simulate effects of tsunamis on coastal infrastructure. This study investigates slope hydrodynamic loading structure when propagating over four different inclined beds (0-, 5-, 10-, 15-degree) experiment and numerical simulation using OpenFOAM DualSPHysics. Except for small discrepancies in pressure time-history, results obtained with both DualSPHysics agreed closely experimental dynamic pressures. The revealed that decreased after an initial impact peak from lowest transducers 15-degree cases compared horizontal case. However, at same corresponding level increased increase slope. integrated forces were similar 0- 5-degree cases, while they higher 10- due insufficient data. By investigating relation between force decrease slopes, a non-dimensional reduction factor was proposed linear fitness estimation. can provide novel insight calculation tsunami-like surges infrastructures considering beach