Convergence analysis of the Navier–Stokes alpha model
✍ Scribed by Atife Çaǧlar
- Publisher
- John Wiley and Sons
- Year
- 2009
- Tongue
- English
- Weight
- 133 KB
- Volume
- 26
- Category
- Article
- ISSN
- 0749-159X
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✦ Synopsis
Abstract
We consider the Navier–Stokes‐alpha (NS‐α) model as an approximation of turbulent flows under nonperiodic boundary conditions. We prove global existence and uniqueness of weak solutions of the particular model. Further, we give full discretization of the model using the finite element approximations. Finally, we prove convergence of the method to the continuous NS‐α solution as h → 0 for a constant α. © 2009 Wiley Periodicals, Inc. Numer Methods Partial Differential Eq 2010
📜 SIMILAR VOLUMES
The introduction into the continuity equation of additional terms to recover grid-scale ellipticity, for the Navier-Stokes equations discretised on a non-staggered mesh, results in an increase in the discretisation error. The introduced error is a combination of the additional truncation error and a