Abstract
For the numerical simulation of flood waves that develop in two dimensions it is necessary to use algorithms with shock-capturing capabilities. Two schemes, the MacCormack and the Runge Kutta Finite volume scheme designed for calculations on a rectilinear grid are initially presented in this paper. Additionally the latter scheme was prepared for calculation using a triangular grid. The results obtained by the application of these algorithms to flood wave problems were compared with those recorded in a physical model study. Good agreement was observed. It was concluded therefore that the MacCormack scheme and the Runge Kutta Finite Volume scheme may be used with reasonable confidence to predict a 2D dam break flood. Further improvement may however be made.KeywordsShallow Water EquationHydraulic JumpTransonic FlowTriangular GridFlood WaveThese keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.
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