Finite element simulation of turbulent Couette–Poiseuille flows using a low Reynolds number k–ϵ model
✍ Scribed by Siamak Kazemzadeh Hannani; Michel Stanislas
- Publisher
- John Wiley and Sons
- Year
- 1999
- Tongue
- English
- Weight
- 324 KB
- Volume
- 30
- Category
- Article
- ISSN
- 0271-2091
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✦ Synopsis
Developing Couette-Poiseuille flows at Re= 5000 are studied using a low Reynolds number ktwo-equation model and a finite element formulation. Mesh-independent solutions are obtained using a standard Galerkin formulation and a Galerkin/least-squares stabilized method. The predictions for the velocity and turbulent kinetic energy are compared with available experimental results and to the DNS data. Second moment closure's solutions are also compared with those of the k -model. The deficiency of eddy viscosity models to predict dissymmetric low Reynolds number channel flows has been demonstrated.