The 9th International Conference on Water Resource and Environment (WRE 2023)

Abstract: Meandering estuaries require some level of hydrodynamic and morphologic analysis. The details of the hydraulic and morphologic features through meander evolution in estuary can be simulated through a numerical model. A 2-D model was adopted to investigate the hydraulic and morphologic changes through meander’s evolution. A meandering Sebou estuary in Morocco was studied and considered for morphological modeling by 2-D numerical analysis. The K-ɛ turbulent model and secondary current were considered for modeling complex flow pattern. The model takes into account both high and low tide conditions with different simulation scenarios under different river discharges. From the results, it was found that velocity is higher in the deeper part of the estuary, especially in the middle estuary section. Also, most of time, flow is sub-critical along the estuary. This study is significant for monitoring siltation process to keep the estuary navigable.