A correction for streamwise Reynolds stress data acquired with insufficient spatial resolution is proposed for wall-bounded flows. The method is based on the attached eddy hypothesis to account for spatial filtering effects at all wall-normal positions. This analysis reveals that outside the near-wall region the spatial filtering effect scales inversely with the distance from the wall, in contrast to the commonly assumed scaling with the viscous length scale. The new formulation is shown to work very well for data taken over a wide range of Reynolds numbers and wire lengths.
|Number of pages||13|
|Journal||Journal of Fluid Mechanics|
|State||Published - Jun 10 2011|
Bibliographical noteFunding Information:
The authors wish to acknowledge the support of the Australian Research Council, AOARD under Grant AOARD-09-4023 (Program Manager R. Ponnappan), AFOSR under Grant FA9550-09-1-0569 (Program Manager J. Schmisseur) and ONR under Grant N00014-09-1-0263 (Program Manager R. Joslin).
- shear layer turbulence
- turbulent boundary layers
- turbulent flows
ASJC Scopus subject areas
- Condensed Matter Physics
- Mechanics of Materials
- Mechanical Engineering
- Applied Mathematics