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Rapport (Rapport De Recherche) Année : 2008

Numerical methods for low-order modeling of fluid flows based on POD

Résumé

This report explores some numerical alternatives that can be exploited to derive efficient low-order models of the Navier-Stokes equations. It is shown that an optimal solution sampling can be derived using appropriate norms of the Navier-Stokes residuals. Then the classical Galerkin approach is derived in the context of a residual minimization method that is similar to variational multiscale modeling. Finally, calibration techniques are reviewed and applied to the computation of unsteady aerodynamic forces. Examples pertaining to both non-actuated and actuated flows are shown.
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Dates et versions

inria-00345184 , version 1 (08-12-2008)

Identifiants

  • HAL Id : inria-00345184 , version 1

Citer

Jessie Weller, Edoardo Lombardi, Michel Bergmann, Angelo Iollo. Numerical methods for low-order modeling of fluid flows based on POD. [Research Report] RR-6758, INRIA. 2008, pp.23. ⟨inria-00345184⟩
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