Research Article
Mar 1981
Turbulence Measurement Study
Publication: Journal of the Hydraulics Division
Volume 107, Issue 3
Abstract
The capability of a modified commercially available electromagnetic water current meter was evaluated for measurement of parameters necessary to quantify turbulent flow. Values of turbulence intensity were measured, and Fourier analyses of their oscillograph recordings were performed to obtain the spectral distribution of the energy. Field tests were then conducted at three locations selected on the basis of their differences in flow regime. The results showed that values of turbulent intensity for flows between very high to light turbulence levels ranged from 0.71 to 0.06, respectively, and the Fourier analysis of the data shows the energy to be concentrated generally below 5 Hz. This instrument can be used to obtain relative values of turbulent intensity and spectral information from field measurement.
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Published In
Journal of the Hydraulics Division
Volume 107 • Issue 3 • March 1981
Pages: 311 - 326
Copyright
© 1981 American Society of Civil Engineers.
History
Published in print: Mar 1981
Published online: Feb 3, 2021
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Authors
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O. Franklyn Griffith III
Engr., United States Corps of Engrs. New Orleans Dist., also Asst. Prof. of Physics, Univ. of New Orleans, Lake Front, New Orleans, La. 70122
Charles Grimwood, M.ASCE
Environmental Engr., United States Army Corps, New Orleans Dist., La.
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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.
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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.