Wavelet spatial scaling for educing dynamic structures in turbulent open cavity flows

Cited 5 time in webofscience Cited 0 time in scopus
  • Hit : 532
  • Download : 0
In this work a methodology was developed for the selection of wavelet spatial scales to educe dynamic structures in turbulent cavity flows. The wavelet transform was applied to both the temporal signal and spatial fields to extract structures from the oscillating shear layer. The dominant frequencies were identified from the temporal transform of the shear layer oscillations, and then the corresponding wavelength was obtained using the relation U(c)T=lambda at each frequency. The wavelet spatial scaling was examined and a one-to-one relationship was established with respect to the wavelength. At each spatial scale, the transformed images of vorticity, velocity, and pressure fluctuations captured the vortical structures. Using this methodology, the dynamic vortical structures were extracted from the turbulent open cavity flows. Energy analysis was performed to examine the contributions of each structure. (C) 2011 Elsevier Ltd. All rights reserved.
Publisher
ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
Issue Date
2011-10
Language
English
Article Type
Article
Keywords

SELF-SUSTAINED OSCILLATIONS; MODEL; LAYER

Citation

JOURNAL OF FLUIDS AND STRUCTURES, v.27, no.7, pp.962 - 975

ISSN
0889-9746
URI
http://hdl.handle.net/10203/96449
Appears in Collection
ME-Journal Papers(저널논문)
Files in This Item
There are no files associated with this item.
This item is cited by other documents in WoS
⊙ Detail Information in WoSⓡ Click to see webofscience_button
⊙ Cited 5 items in WoS Click to see citing articles in records_button

qr_code

  • mendeley

    citeulike


rss_1.0 rss_2.0 atom_1.0