Experiments on Turbulence Management Using Screens and Honeycombs

[+] Author and Article Information
Cesar Farell, Sadek Youssef

St. Anthony Falls Laboratory, Department of Civil Engineering, University of Minnesota, Minneapolis, MN 55414

J. Fluids Eng 118(1), 26-32 (Mar 01, 1996) (7 pages) doi:10.1115/1.2817505 History: Received March 22, 1994; Revised May 01, 1995; Online December 04, 2007


The results of some experiments on turbulence management using combinations of honeycombs of a different lengths and coarse and fine screens, carried out in highly nonuniform and turbulent flows generated in a 127-mm plexiglas pipe by an upstream fan, are presented. The performance of the devices as single manipulators and in combination is evaluated through hot-wire measurements of the mean and rms values of the longitudinal velocities over the pipe cross section. The results show that relatively short honeycombs, preceded by a coarse screen and followed by one or more fine screens, can be used for effective management of such flows.

Copyright © 1996 by The American Society of Mechanical Engineers
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