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Fourier analysis of an equal-order incompressible flow solver stabilized by pressure-gradient projection

Autor
Buscaglia, G.; Basombrío, F.; Codina, R.
Tipus d'activitat
Article en revista
Revista
International journal for numerical methods in fluids
Data de publicació
2000-09
Volum
34
Número
1
Pàgina inicial
65
Pàgina final
92
DOI
10.1002/1097-0363(20000915)34:1<65::AID-FLD56>3.0.CO;2-J
URL
http://onlinelibrary.wiley.com/doi/10.1002/1097-0363%2820000915%2934:1%3C65::AID-FLD56%3E3.0.CO;2-J/abstract Obrir en finestra nova
Resum
Fourier analysis techniques are applied to the stabilized finite element method (FEM) recently proposed by Codina and Blasco for the approximation of the incompressible Navier–Stokes equations, here denoted by pressure gradient projection (SPGP) method. The analysis is motivated by spurious waves that pollute the computed pressure in start-up flow simulation. An example of this spurious phenomenon is reported. It is shown that Fourier techniques can predict the numerical behaviour of stabilize...
Paraules clau
Incompressible Flow, Spurious Pressure Wave, Stabilized Methods, Von Neumann's Analysis
Grup de recerca
(MC)2 - UPC Mecànica de Medis Continus i Computacional
ANiComp - Anàlisi numèrica i computació científica

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