Tensorial time scale in turbulent gradient transport of Reynolds stresses

On the notion that the Reynolds stresses are transported with different time scales depending on the transport direction, the third-order velocity correlations are represented by a new turbulent gradient transport model with a tensorial Lagrangian time scale. In order to verify the proposed model, DNS data are first obtained in a turbulent channel flow at Re-tau = 180 and 300, and tensorial Lagrangian time scales are computed. The present model predictions are compared with direct numerical simulation data and those predicted by the third-order turbulent transport model of Hanjalic and Launder that uses a scalar time scale. The result demonstrates that the Reynolds stresses are indeed transported with different time scales depending on the transport direction. c 2005 American Institute of Physics.
Publisher
AMER INST PHYSICS
Issue Date
2005-07
Language
ENG
Keywords

CHANNEL FLOW; SIMULATIONS; STATISTICS

Citation

PHYSICS OF FLUIDS, v.17, no.7, pp.634 - 639

ISSN
1070-6631
DOI
10.1063/1.2074647
URI
http://hdl.handle.net/10203/13533
Appears in Collection
ME-Journal Papers(저널논문)
Files in This Item
000232165200064.pdf(31.53 kB)Download
  • Hit : 155
  • Download : 212
  • Cited 0 times in thomson ci
This item is cited by other documents in WoS
⊙ Detail Information in WoSⓡClick to seewebofscience_button
⊙ Cited 2 items in WoSClick to see citing articles inrecords_button

qr_code

  • mendeley

    citeulike


rss_1.0 rss_2.0 atom_1.0