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Reynolds stress field in a turbulent wall jet induced by a streamwise vortex with periodic perturbation

Experiments in fluids : experimental methods and their applications to fluid flow Volume 40 Issue 3 Page 372-382
published_at 2006-03
Title
Reynolds stress field in a turbulent wall jet induced by a streamwise vortex with periodic perturbation
Creators Mochizuki S.
Creators Yamada S.
Creators Mochizuki Shinsuke
An experimental study on the Reynolds stress tensor was conducted in the three-dimensional flow in the plane turbulent wall jet induced by an isolated streamwise vortex generated by the half-delta wing mounted on the wall. Oscillation of the angle of attack of the wing induced a periodic perturbation in the strength of the streamwise vortex. Analysis by triple velocity decomposition and phase averaging shows that the oscillation induces periodic variations in the strength, radius, and position of the streamwise vortex center. The effect of periodic perturbation manifests itself in the magnitude of the Reynolds stress components <w^2>^^^- and <vw>^^^-. Simulations prove that the periodic variations in the strength, radius, and position of the vortex center can generate an apparent shear stress, denoted herein as <V^^~W^^~>^^^-.
Subjects
工学 ( Other)
Languages eng
Resource Type journal article
Publishers Springer
Date Issued 2006-03
File Version Not Applicable (or Unknown)
Access Rights metadata only access
Relations
[ISSN]0723-4864
[NCID]AA10447762
info:doi/10.1007/s00348-005-0074-9
[isVersionOf] [URI]http://www.springerlink.com/content/100416/
Schools 大学院理工学研究科(工学)