Author(s): Wei Wenli; Dai Huichao
Linked Author(s):
Keywords: Curvature correction turbulence model; Finite volume method; Free surface; Numerical simulation; VOF method
Abstract: This paper is concerned with a mathematical model for two-dimensional strong turbulence flow with free surface including the effects of streamline curvature in orthogonal curvilinear coordinate system, with which the characteristics of the turbulence flow field on the concave surface of a spillway has been numerical simulated. In the numerical simulation, the flow control equations in orthogonal curvilinear coordinate system are discretized by the finite volume method; the physical parameters (pressure P ， U， V， K ， ε ， tγ ， etc. ) are arranged on a staggered grid; the discretized equations are solved by SIMPLEC method; and the complex free surface is dealt with VOF method. The computed results show that the velocity fields, pressure field, shear stress distribution and kinetic energy of turbulent flows on the concave surface of the spillway are in agreement with experimental data. This confirms that the model can be used for numerical simulation of the turbulence flow on spillways.
Year: 2005