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A general algorithm for compressible and incompressible flows. Part III: the semi-implicit form

Autor
Codina, R.; Vazquez, M.; Zienkiewicz, O.C
Tipus d'activitat
Article en revista
Revista
International journal for numerical methods in fluids
Data de publicació
1998-01
Volum
27
Número
1-4
Pàgina inicial
13
Pàgina final
32
DOI
10.1002/(SICI)1097-0363(199801)27:1/4<13::AID-FLD647>3.0.CO;2-8
URL
http://onlinelibrary.wiley.com/doi/10.1002/%28SICI%291097-0363%28199801%2927:1/4%3C13::AID-FLD647%3E3.0.CO;2-8/abstract Obrir en finestra nova
Resum
In this paper we consider some particular aspects related to the semi-implicit version of a fractional step finite element method for compressible flows that we have developed recently. The first is the imposition of boundary conditions. We show that no boundary conditions at all need to be imposed in the first step where an intermediate momentum is computed. This allows us to impose the real boundary conditions for the pressure, a point that turns out to be very important for compressible flows...
Paraules clau
characteristic schemes, pressure stabilization, splitting
Grup de recerca
(MC)2 - UPC Mecànica de Medis Continus i Computacional
ANiComp - Anàlisi numèrica i computació científica

Participants