Title :

Identification of concentrated structures in slightly compressible flows

Author(s) :

Creusé, Emmanuel [Auteur]
SImulations and Modeling for PArticles and Fluids [SIMPAF]
Laboratoire Paul Painlevé - UMR 8524 [LPP]
Laboratoire de Mathématiques Appliquées de Bordeaux [MAB]
Mortazavi, Iraj [Auteur]
Institut de Mathématiques de Bordeaux [IMB]
Modélisation, contrôle et calcul [MC2]

Journal title :

Comptes rendus de l’Académie des sciences. Série IIb, Mécanique

Publisher :

Elsevier

Publication date :

2001

ISSN :

1620-7742

HAL domain(s) :

Sciences de l'ingénieur [physics]/Mécanique [physics.med-ph]/Mécanique des fluides [physics.class-ph]
Physique [physics]/Mécanique [physics]/Mécanique des fluides [physics.class-ph]
Mathématiques [math]/Analyse numérique [math.NA]

English abstract : [en]

In this paper, different vortex diagnostic methods are compared to obtain a better understanding of boundary layer influence on the transport of vortical structures involving a complete analysis of vorticity, the Vorticity ...
Show more >In this paper, different vortex diagnostic methods are compared to obtain a better understanding of boundary layer influence on the transport of vortical structures involving a complete analysis of vorticity, the Vorticity Threshold Criterion (VTC), and the Weiss Criterion (WC). These three techniques are basically confronted to find a suitable understanding of all flow characteristics for a range of laminar to transitional Reynolds numbers. The computations on this dihedral plane are done using a 2D DNS method. The Weiss criterion, coming from the analysis of the incompressible Euler equations is validated and applied to low speed compressible flows (Mach number=0.2).Show less >

Language :

Anglais

Popular science :

Non

Collections :

• Laboratoire Paul Painlevé - UMR 8524

Source :

Harvested from HAL