A parallel pressure implicit splitting of operators algorithm applied to flows at all speeds
A parallel pressure implicit splitting of operators algorithm applied to flows at all speeds
A parallel implementation of the pressure-based implicit splitting of operators (PISO) method is described and applied to both compressible and incompressible flows. The treatment of variables at the interfaces between adjacent blocks is highlighted, and, for compressible flow, a straightforward method for the implicit handling of density is described. Steady state and oscillatory flow through a sudden expansion are considered at low speeds for both two- and three-dimensional geometries. Extension of the incompressible method to compressible flow is assessed for subsonic, transonic and supersonic flow through a two-dimensional bump. Although good accuracy is achieved in these high-speed flows, including the automatic capturing of shock waves, the method is deemed unsuitable for simulating steady state high-speed flows on fine grids due to the requirement of very small time steps.
compressible, finite volume, incompressible, oscillatory, PISO
497-518
Bressloff, N.W.
4f531e64-dbb3-41e3-a5d3-e6a5a7a77c92
2001
Bressloff, N.W.
4f531e64-dbb3-41e3-a5d3-e6a5a7a77c92
Bressloff, N.W.
(2001)
A parallel pressure implicit splitting of operators algorithm applied to flows at all speeds.
International Journal for Numerical Methods in Fluids, 36 (5), .
(doi:10.1002/fld.140).
Abstract
A parallel implementation of the pressure-based implicit splitting of operators (PISO) method is described and applied to both compressible and incompressible flows. The treatment of variables at the interfaces between adjacent blocks is highlighted, and, for compressible flow, a straightforward method for the implicit handling of density is described. Steady state and oscillatory flow through a sudden expansion are considered at low speeds for both two- and three-dimensional geometries. Extension of the incompressible method to compressible flow is assessed for subsonic, transonic and supersonic flow through a two-dimensional bump. Although good accuracy is achieved in these high-speed flows, including the automatic capturing of shock waves, the method is deemed unsuitable for simulating steady state high-speed flows on fine grids due to the requirement of very small time steps.
Text
bres_01.pdf
- Accepted Manuscript
More information
Published date: 2001
Keywords:
compressible, finite volume, incompressible, oscillatory, PISO
Identifiers
Local EPrints ID: 21853
URI: http://eprints.soton.ac.uk/id/eprint/21853
ISSN: 0271-2091
PURE UUID: 24206864-227c-46bc-8610-97f990814aef
Catalogue record
Date deposited: 16 Mar 2006
Last modified: 15 Mar 2024 06:33
Export record
Altmetrics
Download statistics
Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.
View more statistics