Hydrodynamic model for complex flow in open-channel networks

A hydrodynamic model for open-channel networks is established using the newly proposed junction-point water stage prediction and correction(JPWSPC) method,which treats backwater effects at the junctions.In the model,the Saint-Venant equations are discretized using the Preissmann scheme.The resulting equations are solved using the Newton-Raphson method.The model needs neither specific node-numbering nor setting up and solving branch equations.Thus the model is applicable to both dentritic and looped channel networks,and more robust and efficient.