Author(s): Th. Wenka; P. Valenta; W. Rodi
Linked Author(s): Th. Wenka
Keywords: No Keywords
Abstract: A depth-average calculation procedure is presented for flows in rivers with complex, irregular geometry. The governing flow equations are solved with an efficient finite-volume method employing curvilinear boundary-fitted grids. Horizontal turbulent momentum exchange processes are simulated with a depth-average version of the k-ε turbulence model and the bed shear stress with the usual quadratic friction law involving the Manning coefficient. The calculation procedure is tested by application to a flood situation on the river Rhine for which air-model results are available. The agreement between calculated and measured velocity field is generally good.
Year: 1991