Determining the Spectral Signature of Spatial Coherent Structures - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Physical Review E : Statistical, Nonlinear, and Soft Matter Physics Année : 2005

Determining the Spectral Signature of Spatial Coherent Structures

Résumé

We applied to an open flow a proper orthogonal decomposition (pod) technique, on 2D snapshots of the instantaneous velocity field, to reveal the spatial coherent structures responsible of the self-sustained oscillations observed in the spectral distribution of time series. We applied the technique to 2D planes out of 3D direct numerical simulations on an open cavity flow. The process can easily be implemented on usual personal computers, and might bring deep insights on the relation between spatial events and temporal signature in (both numerical or experimental) open flows.
Fichier principal
Vignette du fichier
pastur.pdf (3.2 Mo) Télécharger le fichier
Loading...

Dates et versions

hal-00009535 , version 1 (04-10-2005)

Identifiants

Citer

L.R. Pastur, F. Lusseyran, Y. Fraigneau, B. Podvin. Determining the Spectral Signature of Spatial Coherent Structures. Physical Review E : Statistical, Nonlinear, and Soft Matter Physics, 2005, 72, pp.065301(R). ⟨10.1103/PhysRevE.72.065301⟩. ⟨hal-00009535⟩
47 Consultations
98 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More