Research Progress on Numerical Simulation of HEC-RAS and Mike Dam-Break Flood
After dam-break,the flood flow is fast.The destructive force is big.The influence scope is wide,which seriously endangers the safety of people's life and property in the downstream area.In order to accurately under-stand the damage caused by dam-break flood,this paper discusses the research background of dam-break problem.The common software of numerical simulation and its functions,the characteristics of one-dimensional,two-di-mensional and three-dimensional models of dam-break simulation software are summarized,and the research sta-tus and characteristics of HEC-RAS and Mike are emphatically analyzed.The results show that HEC-RAS has the characteristics of easy operation,simple interface and Mike has the characteristics of high efficiency and wide ap-plication.The two software can carry out dam-break simulation accurately and promote the understanding of dam-break mechanism.which is of great significance for the maintenance of dam safety.The research results can pro-vide a reference for the follow-up study of dam-break flood.At present,the numerical simulation method of dam-break flood is nearly perfect,but there are still some problems that cannot be embodied in the numerical simula-tion software for such factors as sediment and turbulence,which need to be further solved in the future.
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