A discrete artificial boundary condition for steady incompressible viscous flows in a no-slip channel using a fast iterative method
Journal Article
·
· Journal of Computational Physics
- Tsinghua Univ., Beijing, (China)
We design a discrete artificial boundary condition for the steady incompressible Navier-Stokes equations in stream function vorticity formulation in an infinite channel. The new boundary condition is derived from a linearized Navier-Stokes system and a fast iterative method. Numerical experiments for the nonlinear Navier-Stokes equations are presented. The discrete artificial boundary condition is compared to Dirichlet and Neumann boundary conditions for the flow over a forward or backward facing step and for flow past a rectangular cylinder. Numerical results show that our boundary condition is very effective. 13 refs., 11 figs., 3 tabs.
- OSTI ID:
- 99052
- Journal Information:
- Journal of Computational Physics, Journal Name: Journal of Computational Physics Journal Issue: 2 Vol. 114; ISSN 0021-9991; ISSN JCTPAH
- Country of Publication:
- United States
- Language:
- English
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