2D shallow water flow model for the hydraulic jump

✍ Scribed by J.G. Zhou; P.K. Stansby

• Publisher: John Wiley and Sons
• Year: 1999
• Tongue: English
• Weight: 229 KB
• Volume: 29
• Category: Article
• ISSN: 0271-2091
• DOI: 10.1002/(sici)1097-0363(19990228)29:4<375::aid-fld790>3.0.co;2-3

✦ Synopsis

A flow model is presented for predicting a hydraulic jump in a straight open channel. The model is based on the general 2D shallow water equations in strong conservation form, without artificial viscosity, which is usually incorporated into the flow equations to capture a hydraulic jump. The equations are discretised using the finite volume method. The results are compared with experimental data and available numerical results, and have shown that the present model can provide good results. The model is simple and easy to implement. To demonstrate the potential application of the model, several hydraulic jumps occurring in different situations are simulated, and the predictions are in good agreement with standard solution for open channel hydraulics.