Abstract
This study presents two computational schemes for the numerical approximation of solutions to eddy viscosity models as well as transient Navier-Stokes equations. The eddy viscosity model is one example of a class of Large Eddy Simulation models, which are used to simulate turbulent flow. The first approximation scheme is a first order single step method that treats the nonlinear term using a semi-implicit discretization. The second scheme employs a two step approach that applies a Crank-Nicolson method for the nonlinear term while also retaining the semi-implicit treatment used in the first scheme. A finite element approximation is used in the spatial discretization of the partial differential equations. The convergence analysis for both schemes is discussed in detail, and numerical results are given for two test problems one of which is the two dimensional flow around a cylinder.
Original language | English (US) |
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Pages (from-to) | 212-231 |
Number of pages | 20 |
Journal | Numerical Methods for Partial Differential Equations |
Volume | 25 |
Issue number | 1 |
DOIs | |
State | Published - Jan 2009 |
All Science Journal Classification (ASJC) codes
- Analysis
- Numerical Analysis
- Computational Mathematics
- Applied Mathematics