Research Article
Jan 1974
Turbulence in Wakes of Roughness Elements
Publication: Journal of the Hydraulics Division
Volume 100, Issue 1
Abstract
The results of an experimental investigation of the turbulent flow in a pipe roughened with hemispheres are reported. The roughness concentration was varied by changing the size of roughness elements which were uniformly distributed on the smooth boundary. Measurements included intensity of turbulence, macroscale of turbulence, Reynolds stress, mean velocity, pressure gradient, drag force, and shear stress on the smooth boundary. Turbulence and velocity measurements were confined to a vertical plane through the wake center line. The results of the experiments provide new information, and reduce some of the uncertainty about the structure of turbulence and mean velocity distribution in the wakes of roughness elements.
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Information
Published In
Journal of the Hydraulics Division
Volume 100 • Issue 1 • January 1974
Pages: 53 - 67
Copyright
© 1974 American Society of Civil Engineers.
History
Published in print: Jan 1974
Published online: Feb 3, 2021
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C. K. Chen, AM.ASCE
Sr. Engr.; John A. Blume & Assocs., Engrs., San Francisco, CA
John A. Roberson, M.ASCE
Prof. of Civ. Engrg. and Res. Engr.; Washington State Univ., Pullman, WA
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ASCE Library Cards let you download journal articles, proceedings papers, and available book chapters across the entire ASCE Library platform. ASCE Library Cards remain active for 24 months or until all downloads are used. Note: This content will be debited as one download at time of checkout.
Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.
Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.