Velocity and Turbulence Fields in Pipe Entrance Regions in the Presence of Cross Flows

[+] Author and Article Information
S. Lloyd

Department of Mechanical and Manufacturing Systems, University of Wales Institute of Science and Technology, Cardiff CF1 3NU, United Kingdom

A. Brown

School of Mechanical, Materials and Civil Engineering, Royal Military College of Science, Shrivenham, Swindon, Wiltshire SN6 8LA, United Kingdom

J. Eng. Gas Turbines Power 108(3), 498-503 (Jul 01, 1986) (6 pages) doi:10.1115/1.3239936 History: Received January 22, 1986; Online October 15, 2009


This paper reports on an experimental investigation into the velocity and turbulence fields in the entrance region of a circular pipe with cross flow at the entry. The pipe entry is a sharp square-edged type with air as the working fluid and measurements are made over the region 0<X/D<21. Observations are presented for a range of cross flows with a maximum Reynolds number, based on pipe diameter, of 64,000. The hot-wire anemometer measurements show a separated nonaxisymmetric flow at entry followed by a skewed flow which progressively smooths out with distance along the pipe.

Copyright © 1986 by ASME
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