Anisotropic adaptive stabilized finite element solver for RANS models

Abstract : Aerodynamic characteristics of various geometries are predicted using a finite element formulation coupled with several numerical techniques to ensure stability and accuracy of the method. First, an edge based error estimator and anisotropic mesh adaptation are used to detect automatically all flow features under the constraint of a fixed number of elements, thus controlling the computational cost. A Variational MultiScale stabilized finite element method is employed to solve the incompressible Navier-Stokes equations. Finally, the Spalart-Allmaras turbulence model is solved using the Streamline Upwind Petrov-Galerkin (SUPG) method. This paper is meant to show that the combination of anisotropic unsteady mesh adaptation with stabilized finite element methods provides an adequate framework for solving turbulent flows at high Reynolds numbers. The proposed method was validated on several test cases by confrontation with literature of both numerical and experimental results, in terms of accuracy on the prediction of the drag and lift coefficients as well as their evolution in time for unsteady cases. This article is protected by copyright. All rights reserved.
Type de document :
Article dans une revue
International Journal for Numerical Methods in Fluids, Wiley, 2018, 86 (11), pp.717-736. 〈10.1002/fld.4475〉
Liste complète des métadonnées

https://hal-mines-paristech.archives-ouvertes.fr/hal-01629274
Contributeur : Magalie Prudon <>
Soumis le : lundi 6 novembre 2017 - 11:35:43
Dernière modification le : mardi 27 mars 2018 - 16:06:22

Identifiants

Citation

Jessica Sari, Francesco Cremonesi, Mehdi Khalloufi, François Cauneau, Philippe Meliga, et al.. Anisotropic adaptive stabilized finite element solver for RANS models. International Journal for Numerical Methods in Fluids, Wiley, 2018, 86 (11), pp.717-736. 〈10.1002/fld.4475〉. 〈hal-01629274〉

Partager

Métriques

Consultations de la notice

220