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Numerical Solution of Viscous 2Dv Free Surface Flows: Flow over Spillway Crests

Author(s): Martin F. Burgisser; Peter Rutschmann

Linked Author(s): Peter Rutschmann

Keywords: Numerical modelling; Navier-Stokes equations; Free surface flow; FiniteElement Method; Design of hydraulic structures; Flow over weirs; Spillway geometries

Abstract: An iterative solution to the incompressible two dimensional vertical (2DV) steady Navier-Stokes Equations (NSE) is used to solve for the a priori unknown free surface, the velocity and the pressure fields. The entire waterbody is covered by a unstructured finite element grid which is locally refined. The solution method is tested for different discharges on two standard spillway geometries. The results agree with available experimental data.


Year: 1999

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