Energy Transfer and Reverse Flow Characteristics in the Interaction Process between Non-Breaking Solitary Wave and a Steep Seawall: A Case Study

This study utilized a two-dimensional numerical viscous wave tank to simulate the run-up and run-down processes of non-breaking solitary waves on steep seawall. The research aimed investigate transformation between potential energy kinetic energy, evolution mechanisms flow fields, correlation dynamic pressure gradient reverse near sloping bed. model results were consistent with laboratory measurements free surface elevations velocity profiles, demonstrating accuracy model. focused wave-height-to-water-depth ratio 0.15, propagating representative seawall slope 1:3 along western coast Taiwan. simulation indicate that maximum height occurs when is at its highest. Undertow caused by adverse within field, bed directly proportional elevation. Therefore, observing spatial changes in elevation, we can indirectly determine occurrence time undertow.