A 3D pseudospectral method for cylindrical coordinates. Application to the simulations of rotating cavity flows - Archive ouverte HAL
Article Dans Une Revue Journal of Computational Physics Année : 2012

A 3D pseudospectral method for cylindrical coordinates. Application to the simulations of rotating cavity flows

Résumé

The present work proposes a collocation spectral method for solving the three-dimensional Navier-Stokes equations using cylindrical coordinates. The whole diameter -R < r < R is discretized with an even number of radial Gauss-Lobatto collocation points and an angular shift is introduced in the Fourier transform that avoid pole and parity conditions usually required. The method keeps the spectral convergence that reduces the number of grid points with respect to lower-order numerical methods. The grid-points distribution densifies the mesh only near the boundaries that makes the algorithm well-suited to simulate rotating cavity flows where thin layers develop along the walls. Comparisons with reliable experimental and numerical results of the literature show good quantitative agreements for flows driven by rotating discs in tall cylinders and thin inter-disc cavities. Associated to a spectral vanishing viscosity [E. Séverac, E. Serre, A spectral vanishing viscosity for the LES of turbulent flows within rotating cavities, J. Comp. Phys. 226 (2007) 1234-1255], the method provides very promising LES results of turbulent cavity flows.
Fichier principal
Vignette du fichier
peres_jcp_2012.pdf (2.41 Mo) Télécharger le fichier
Origine Fichiers éditeurs autorisés sur une archive ouverte
Loading...

Dates et versions

hal-00822026 , version 1 (13-05-2013)

Identifiants

Citer

Noele Peres, Sébastien Poncet, Eric Serre. A 3D pseudospectral method for cylindrical coordinates. Application to the simulations of rotating cavity flows. Journal of Computational Physics, 2012, 231, pp.6290-6305. ⟨10.1016/j.jcp.2012.04.033⟩. ⟨hal-00822026⟩
94 Consultations
1193 Téléchargements

Altmetric

Partager

More