On The Numerical Simulation Of The Process Of Dam Break And Flood Flow Propagation

The flood resulting from a dam breaking propagates quickly and often causes a calamity. During last half century, failures of dams occasional occurred; these accidents resulted in huge loss of property and life. The safety of dams is focused by many people. The correlative research is also more active.The dam-break phenomenon is extremely complex; it lies on many different factors. In earlier period, it is researched usually by experiments. With the development of the calculation technique and numerical methods, and also with the advancement of the computer, more and more numerical models are used to simulate the flood flow caused by dam-break.Based the former research results, a numerical model is developed to analyze dam-break accident. It is applied to predicting the result of dam-break flood flow and researching the methods to reduce risk of the flood.The main research content and conclusions:1. Adopting a dam-breach develop mode, a numerical model is developed to analyze dam-break accident. In this model, calculation of flood flow propagation integrates with regulation of reservoir volume and simulation of process of dam-break.2. Relating to Shuang Jiang Kou reservoir project, this numerical model is applied to analyze the effect of flood and research the methods of reduce risk in different reservoir inflow and different time of failure in Liu Yang city zone. The conclusions can be considered as references in flood prediction and city development project.