Mean Separation and Reattachment in Turbulent Pipe Flow Due to an Orifice Plate

[+] Author and Article Information
N. K. Agarwal

Analytical Services & Materials, Inc., 107 Research Drive, Hampton, VA 23666

J. Fluids Eng 116(2), 373-376 (Jun 01, 1994) (4 pages) doi:10.1115/1.2910284 History: Received July 27, 1992; Revised May 17, 1993; Online May 23, 2008


The mean flow in a pipe with turbulent separated flow due to an orifice plate is experimentally studied. Measurements of time-mean length of separation and reattachment regions, made using a surface fence gauge are presented for a range of orifice sizes. In a limited range of Reynolds number (based on orifice radial height) 3 × 104 to 7.3 × 104 studied, reattachment point location decreased from 12 to 9 step heights. The lengths of separation and reattachment regions are a function of orifice size and the Reynolds number based on the radial height of the orifice plate.

Copyright © 1994 by The American Society of Mechanical Engineers
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