Research Article
Aug 1970
Calibration of Walnut Gulch Supercritical Flumes
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VIEW THE REPLYPublication: Journal of the Hydraulics Division
Volume 96, Issue 8
Abstract
A new supercritical measuring flume is being used to gage sediment-laden ephemeral flows in steep channels. The transition from the natural channel to the straight modified trapezoidal measuring section of the flume consists of a cylindroid surface. The flume is kept free of deposition by a V-shaped floor which slopes in the direction of the flow. The head is measured at the midpoint of the straight section. Ten of these concrete flumes have been installed in the Walnut Gulch Watershed near Tombstone, Arizona. Eight of the flumes have already been calibrated with models in the laboratory. The largest has a bottom width of 120 ft and a capacity of about 26,000 cfs. This structure is the largest known pre-calibrated flume now in operation. The design of the flumes, the laboratory calibration data and some observations of their field operation are analyzed.
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Published In
Journal of the Hydraulics Division
Volume 96 • Issue 8 • August 1970
Pages: 1681 - 1689
Copyright
© 1970 American Society of Civil Engineers.
History
Published in print: Aug 1970
Published online: Feb 3, 2021
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Authors
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Wendell R. Gwinn, M.ASCE
Res. Hydr. Engr., Soil and Water Conservation Res. Div., Agric. Res. Service, U.S. Dept. of Agric., Stillwater, O. K
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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.
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.