Improvement of Non-Hydrostatic and Non-Equilibrium Sediment Transport Model and Its Application to Dike Overtopping and Erosive Overtopping Dikebreach

Key Points

• The aim is to enhance a one-dimensional sediment transport model and assess its applicability to dike overtopping scenarios.
• Improved equations for flood flow models and sediment transport.
• Reevaluation of friction slope handling and analytical techniques for non-hydrostatic terms.
• Incorporation of pressure gradient data into erosion process assessment.
• The improved model successfully replicates characteristics of flow velocity and pressure near dike overtopping areas.
• It accurately reflects experimental results related to erosion processes and overtopping flow rates.