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A new outflow boundary condition

✍ Scribed by T. C. Papanastasiou; N. Malamataris; K. Ellwood

Publisher
John Wiley and Sons
Year
1992
Tongue
English
Weight
1014 KB
Volume
14
Category
Article
ISSN
0271-2091

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πŸ“œ SIMILAR VOLUMES

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We use a one-dimensional model problem of advection-diffusion to investigate the treatment recently advocated by Papanastasiou and colleagues to deal with boundary conditions at artificial outflow boundaries. Using finite elements of degree p, we show that their treatment is equivalent to imposing

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✍ Michael Renardy πŸ“‚ Article πŸ“… 1997 πŸ› John Wiley and Sons 🌐 English βš– 67 KB πŸ‘ 2 views

In recent work on outflow boundary conditions for Navier-Stokes equations by Papanastasiou et al. (Int. j. numer. methods fluids, 14, 587-608 (1992)) a choice has been proposed which can formally be described as imposing no boundary condition at all. This of course leads to an underdetermined proble

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✍ C. B. Vreugdenhil; N. Booij πŸ“‚ Article πŸ“… 1985 πŸ› John Wiley and Sons 🌐 English βš– 310 KB

## Abstract A simple explanation is given of the occurrence of wiggles in the flow field near outflow boundaries. If the shallow‐water equations are solved numerically spurious solutions with an oscillatory character turn out to exist, which can be generated by certain additional numerical boundary