Simulating two-dimensional turbulent flow by using the κ–ϵ model and the vorticity–streamfunction formulation

✍ Scribed by D. Elkaim; M. Reggio; R. Camarero

• Publisher: John Wiley and Sons
• Year: 1992
• Tongue: English
• Weight: 932 KB
• Volume: 14
• Category: Article
• ISSN: 0271-2091
• DOI: 10.1002/fld.1650140806

✦ Synopsis

A numerical procedure to solve turbulent flow which makes use of the k-E model has been developed. The method is based on a control volume finite element method and an unstructured triangular domain discretization. The velocity-pressure coupling is addressed via the vorticity-streamfunction and special attention is given to the boundary conditions for the vorticity. Wall effects are taken into account via wall functions or a low-Reynolds-number model. The latter was found to perform better in recirculation regions. Source terms of the k and E transport equations have been linearized in a particular way to avoid nonrealistic solutions. The vorticity and streamfunction discretized equations are solved in a coupled way to produce a faster and more stable computational procedure. Comparison between the numerical predictions and experimental data shows that the physics of the flow is correctly simulated.