Abstract
This study is concerned with a one-line model for predicting shoreline changes after beach nourishments. The behavior of the injected materials was represented using one-dimensional convection diffusion equation in the alongshore direction. The shoreline changes were calculated by solving the fundamental equation for the conservation of bed material, combined with the advection diffusion equation. First, the proposed model was applied to tombolo formation behind offshore structure in the field. Secondly, the performance of the model was investigated by a model test. Finally, the presented model was applied to the sand recycle project at Yumigahama Coast, Japan, in order to investigate the applicability of the model.
