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RESEARCH PAPERS

Measurement and Prediction of Rough Wall Effects on Friction Factor—Uniform Roughness Results

[+] Author and Article Information
W. F. Scaggs, R. P. Taylor, H. W. Coleman

Thermal & Fluid Dynamics Laboratory, Mechanical and Nuclear Engineering Department, Mississippi State University, Mississippi State, MS 39762

J. Fluids Eng 110(4), 385-391 (Dec 01, 1988) (7 pages) doi:10.1115/1.3243568 History: Received January 11, 1988; Online October 26, 2009

Abstract

The results of an experimental investigation of the effects of surface roughness on turbulent pipe flow friction factors are presented and compared with predictions from a previously published discrete element roughness model. Friction factor data were acquired over a pipe Reynolds number range from 10,000 to 600,000 for nine different uniformly rough surfaces. These surfaces covered a range of roughness element sizes, spacings and shapes. Predictions from the discrete element roughness model were in very good agreement with the data.

Copyright © 1988 by ASME
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