Numerical prediction of a draft tube flow taking into account uncertain inlet conditions - Archive ouverte HAL Accéder directement au contenu
Communication Dans Un Congrès Année : 2012

Numerical prediction of a draft tube flow taking into account uncertain inlet conditions

Résumé

The swirling turbulent flow in a hydroturbine draft tube is computed with a nonintrusive uncertainty quantification (UQ) method coupled to Reynolds-Averaged Navier- Stokes (RANS) modelling in order to take into account in the numerical prediction the physical uncertainties existing on the inlet flow conditions. The proposed approach yields not only mean velocity fields to be compared with measured profiles, as is customary in Computational Fluid Dynamics (CFD) practice, but also variance of these quantities from which error bars can be deduced on the computed profiles, thus making more significant the comparison between experiment and computation.
Fichier non déposé

Dates et versions

hal-00736772 , version 1 (29-09-2012)

Identifiants

  • HAL Id : hal-00736772 , version 1

Citer

Olivier Brugière, Guillaume Balarac, Christophe Eric Corre, Olivier Métais, Emmanuel Flores, et al.. Numerical prediction of a draft tube flow taking into account uncertain inlet conditions. 26th IAHR Symposium on Hydraulic Machinery and Systems, Aug 2012, Pékin, China. pp.1-8. ⟨hal-00736772⟩
103 Consultations
0 Téléchargements

Partager

Gmail Facebook X LinkedIn More