| Summary: | The disaster caused by dam failure causes a lot of casualties. The flash flood caused by the failure may propagate downstream and destroy every things along the reach to some distance. In order to understand such flood, a numerical simulation study is conducted. The failure of Situ Gintung Dam that was recently occured can be used for comparison. Simulation for other dams, therefore, can also be conducted for preparing the waming system necessary to be set. Simulation of t1ush flood is the peculiar one. This because the degree of non-linearity of the phenomenon is high and the Froude number of the flow is also high. This paper presents an experience in conducting 2D numerical simulation study of the flash flood propagation downstream of the Situ Gintung dam using FESWMS software. A I D numerical simulation study using HEC-RAS 4.0 Beta version has been done and presented in Rahardjo, et aI, 2009.
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