Progress in Research on the Hydrodynamic Mechanism of Nearshore Plant Wave Dissipation

Abstract

Coastal salt marsh plants protect shorelines from erosion and damage by dampening incoming waves. Scholars at home and abroad have studied the wave attenuation characteristics of ideal vegetation by using a series of mathematical models and physical model experiments with comparative research methods, taking into account relevant wave conditions, plant parameters, and other factors, which has important ecological and environmental value. Furthermore, the introduction of dimensionless parameters such as Ursell number, Reynolds number, and KC number in standard fluid conditions is significant for evaluating wave dissipation by different vegetation and explaining the hydrodynamic characteristics of plant-induced wave attenuation. However, the hydrodynamic conditions and vegetation considered in existing model studies still have certain limitations. Taking into account wave breaking, random wave conditions, and more refined flexible vegetation simulations will be the main focus of future research.