2011•Proceedings of the 34th World Congress of the International Association for Hydro- Environment Research and Engineering: 33rd Hydrology and Water Resources Symposium and 10th Conference on Hydraulics in Water EngineeringRequires access
Modeling Dam Break Flows Using SPH Technique
HM Kao, Chunhui Wang, TJ Chang, Hsu Mh, YC Tan
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Abstract
A meshless numerical model is proposed to investigate shallow-water dam break flows in 1D open channels. The numerical model is to solve the shallow water equations (SWE) based on smoothed particle hydrodynamics (SPH). The concept of slice water particle (SWP) is adopted in the 1D SPH-SWE formulations. Model validation is examined by a benchmark problem of dam break flows through a rough flat channel. The simulated results indicate that accurate performance is reached in the presence of shock discontinuities and shock front motion. The simulation is carried out by PC within 10 minutes. Thus, the proposed numerical model has proved its efficiency and reliability for dam break flow computations in open channels.