Incompressible SPH simulation of solitary wave propagation on permeable beaches

摘要: Wave propagation on uniformly sloped beaches is a canonical coastal engineering topic that has been studied extensively in the past few decades. However, most of these studies treat as solid boundaries even though they are often made porous materials, such sediment and vegetation. Permeable struck by tsunami-like waves have not adequately investigated. It expected degree permeability plays crucial role mitigating impact wave. This study examines solitary wave run-ups sandy using an incompressible smoothed particle hydrodynamics (ISPH) model. The beach considered to be directly related diameter its constituent sand particles. To obtain satisfactory pressure field, which cannot achieved original ISPH algorithm, source term Poisson equation modified based higher-order source-term expression. Flows within medium computed same framework those outside medium. In current model, no transition zone needed at boundary structure. wave-attenuation effect discussed, with particular focus relationship between run-up height grainsize.