INVESTIGADORES
NIGRO Norberto Marcelo
congresos y reuniones científicas
Título:
FOURIER STABILITY ANALYSIS APPLIED TO NAVIER-STOKES SEGREGATED ALGORITHMS
Autor/es:
VENIER CESAR; PAIRETTI CESAR; MARQUEZ DAMIAN, SANTIAGO; NIGRO NORBERTO
Lugar:
Cordoba
Reunión:
Congreso; ENIEF 2016; 2016
Institución organizadora:
UTN-FRC
Resumen:
The present work aims to determine stability ranges of segregated algorithms (i.e. SIMPLE,PISO) for the solution of the Navier-Stokes equations. The linearization procedure for these algorithmsallows the use of the Fourier series decomposition as a tool at determining the amplification of the erroron the computed solution of the solution. Several characteristic parameters (such as the Courant number,Reynolds number, number of PISO correctors and relaxation factors) are studied in order to understandtheir sensitivity in the general stability behaviour. Finally, due to the typical limitations of the Fourierapproach, some comments are presented regarding the extension to real problems, accounting for issuessuch as non-cyclic boundary conditions, source terms and non-linear behaviour.
