"Constant Reynolds number turbulence downstream of an orificed perforat" by Rui Liu, David S.K. Ting et al.
 

Title

Constant Reynolds number turbulence downstream of an orificed perforated plate

Document Type

Article

Publication Date

8-1-2007

Publication Title

Experimental Thermal and Fluid Science

Volume

31

Issue

8

First Page

897

Keywords

Orificed perforated plate, Quasi-isotropic turbulence, Self-similarity

Last Page

908

Abstract

Quasi-isotropic turbulence was experimentally produced in a wind tunnel via an orificed, perforated plate (OPP) at 10.5 m/s. The OPP consists of a lattice arrangement of 38.1 mm holes occupying 57% of the plate area. The OPP turbulence was found to be homogeneous over the cross section normal to the mean flow with Gaussian-like turbulence fluctuation. The isotropy of the turbulence field as portrayed by the streamwise/lateral turbulence intensity ratio was found to be approximately 1.1. The OPP turbulence is essentially self-preserving wherein the Taylor microscale Reynolds number remains nearly constant and the lateral velocity correlations collapse into a single curve. © 2006 Elsevier Inc. All rights reserved.

DOI

10.1016/j.expthermflusci.2006.09.007

ISSN

08941777

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