Article ID: | iaor20141717 |
Volume: | 270 |
Issue: | 6 |
Start Page Number: | 451 |
End Page Number: | 461 |
Publication Date: | Nov 2014 |
Journal: | Journal of Computational and Applied Mathematics |
Authors: | Svek Petr, Louda Petr, Kozel Karel |
Keywords: | physics, fluid models, fluid mechanics |
This paper is interested in the numerical approximation of the turbulent 3D incompressible flow. The turbulent flow is mathematically modeled using the Reynolds averaged Navier–Stokes (RANS) equations and two classes of the turbulent models are considered. RANS equations are approximated by two numerical techniques, the finite volume and the finite element methods. The finite element approximation on general 3D domains using general meshes consisting of hexahedrons as well as tetrahedrons, pyramids and prisms is described. The definition of the continuous piecewise trilinear/linear finite element space is given, and the stabilization based on the streamline‐upwind/Petrov–Galerkin method together with the pressure stabilizing/Petrov–Galerkin techniques is used. The turbulence