The accuracy of numerical solutions for the incompressible turbulent boundary layer past a flat plate is addressed by means of a prior and a posteriori analysis. The former is carried out by computing the exact solutions of the Reynolds averaged Navier-Stokes equations with the Baldwin-Lomax and Spalart-Allmaras models; these solutions are used for the truncation error estimate in the modified equations. The latter is performed by applying a generalized Richardson extrapolation to the numerical solutions computed by two different finite volume techniques, namely a centered scheme with artificial dissipation and a ENO-type scheme. The results of the a priori theoretical analysis were confirmed by a posteriori analysis of numerical solutions.
Convergence of Two Numerical Schemes for Turbulent Boundary Layer Computations / DI MASCIO, A.; Paciorri, Renato; Favini, Bernardo. - In: AIAA PAPER. - ISSN 0146-3705. - (1998). (Intervento presentato al convegno 29th AIAA Fluid Dynamics Conference tenutosi a Albuquerque (New Mexico - USA) nel June 15-18, Albuquerque (New Mexico - USA)).
Convergence of Two Numerical Schemes for Turbulent Boundary Layer Computations
PACIORRI, Renato;FAVINI, Bernardo
1998
Abstract
The accuracy of numerical solutions for the incompressible turbulent boundary layer past a flat plate is addressed by means of a prior and a posteriori analysis. The former is carried out by computing the exact solutions of the Reynolds averaged Navier-Stokes equations with the Baldwin-Lomax and Spalart-Allmaras models; these solutions are used for the truncation error estimate in the modified equations. The latter is performed by applying a generalized Richardson extrapolation to the numerical solutions computed by two different finite volume techniques, namely a centered scheme with artificial dissipation and a ENO-type scheme. The results of the a priori theoretical analysis were confirmed by a posteriori analysis of numerical solutions.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.