Title :

Formation of power-law scalings of spectra and multiscale coherent structures in the near-field of grid-generated turbulence

Author(s) :

Yasuda, Tatsuya [Auteur]
Department of Aeronautics
Goto, Susumu [Auteur]
Department of Material and Life Science, Graduate School of Engineering, Osaka University
Vassilicos, John Christos [Auteur]
Laboratoire de Mécanique des Fluides de Lille - Kampé de Fériet [LMFL]
Department of Aeronautics

Journal title :

Physical Review Fluids

Publisher :

American Physical Society

Publication date :

2020-01

ISSN :

2469-990X

HAL domain(s) :

Physique [physics]
Sciences de l'ingénieur [physics]
Sciences de l'ingénieur [physics]/Milieux fluides et réactifs

English abstract : [en]

We investigate the streamwise evolutions of energy and pressure spectra along the shear-layer region of very near-field grid-generated turbulence. The energy and pressure spectra evolve significantly in this near field. ...
Show more >We investigate the streamwise evolutions of energy and pressure spectra along the shear-layer region of very near-field grid-generated turbulence. The energy and pressure spectra evolve significantly in this near field. The shear-layer and vortex-shedding frequencies appear immediately in different spectra but the shear-layer's spectral signature is very soon replaced by a broad power-lawShow less >

Language :

Anglais

Popular science :

Non

Collections :

• Laboratoire de Mécanique des Fluides de Lille Kampé de Fériet (LMFL) - UMR 9014

Source :

Harvested from HAL