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Tony L. Wahl, Albert J. Clemmens, Marinus G. Bos, John A. Replogle. 2002. "Tools for Design, Calibration, Construction and Use of Long-Throated Flumes and Broad-Crested Weirs". Bureau of Reclamation, Report Number PAP-890.

Abstract: Long-throated flumes and broad-crested weirs provide a practical, low-cost, flexible means of measuring open-channel flows in new and existing irrigation systems and have distinct advantages over other flume and weir devices. Application of these flumes and weirs has been greatly facilitated by the 1999 release of the WinFlume software used to design and calibrate these structures, and the recent publication of Water Measurement with Flumes and Weirs, a text providing comprehensive information on design, calibration, construction, and operation issues. The primary advantages of these flumes and weirs are that they can be custom-designed to satisfy unique operational and site requirements, and they can be computer calibrated without the need for laboratory testing. In addition, these devices are easily and economically constructed, and a number of commercially built, pre-calibrated devices are available. This paper and accompanying poster describe the use of the WinFlume software and present examples to illustrate application to a range of situations, including various flow rates, channel types, and construction techniques.

Web Link: http://www.usbr.gov/pmts/hydraulics_lab/pubs/PAP/PAP-0890.pdf

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