Abstract
This paper focuses on modeling of wave deformation characteristics around the surf and swash zones on a steeply sloping gravel beach with relatively high permeability. The developed may be extended for predictions of the deformation and stability of the gravel beach. Laboratory experiments were first carried out and interacting characteristics of wave fields and deforming gravel beach were quantitatively captured through the image-based analysis. A two-layer numerical wave model was then developed accounting for the wave penetration and attenuation inside the gravel layer. The developed model was applied to the present laboratory experiments, and the validated model was used for further investigations of the time-varying wave characteristics on the deforming gravel beach.
