The influence of main channel velocity and water depth changes on the hydrodynamic characteristics of lateral water intake in a tidal channel

Abstract A tidal channel will be affected by the intrusion of seawater, so current and water depth in change at every moment. These changes are critical to hydrodynamic characteristics intakes rivers. This paper establishes a 3D model validates it through laboratory models, then analyzes influences dynamic flow velocity depth, amplitude on secondary withdrawal process. With increase main decrease diversion width intake decreases, peak increases, intensity also increases. changing rate lag time is longer, greater than constant flow. The influence that change. Combining these four factors, more sand may washed into inlet under conditions high low depth.