Collins, CO: Office of Agriculture, Bureau for Technical Assistance. Cutthroat Flumes for Water Measurement (PDF). Oxford, United Kingdom: International Institute for Land Reclamation and Improvement. Pictures of fiberglass, galvanized and stainless steel Cutthroat flumes. ^ "Don't Get Stuck: Sanitary Flows in Flumes".^ "Discharge Measurement Structures, Third Edition, Publication 20" (PDF).^ "Flow Characteristics of Cutthroat Flumes".Centre d'expertise en analyse environnementale du Quebec. ^ "Sampling Guide for Environmental Analysis" (PDF).^ "Cutthroat Flumes for Flow Measurement".International Irrigation Management Institute. ^ "Converting a Fabricated Cutthroat Flume Into a Discharge Measuring Instrument" (PDF).Below grade piped flows (concrete vaults / manholes incorporated into Packaged Metering Manholes.Surface waters (swales, creeks, streams, and rivers).H is the head at the primary point of measurementĪs with the Parshall flume, the initial applications for Cutthroat flumes were envisioned to be measuring flows in irrigation channels and other surface waters.Īgain, like the Parshall flume, the Cutthroat flume has proven to be applicable to a range of open channel flows including:.The free-flow discharge can be summarized as Q = C H n Under free-flow conditions the depth of water at specified location upstream of the flume throat can be converted to a rate of flow. The flumes are not patented and the discharge tables are not copyright protected.Ī total of 16 standard sizes of Cutthroat flumes have been developed, covering flow ranges from 0.3536 gpm to 54,801 gpm. The design of the Cutthroat flume is standardized but not covered by a national or international standard (unlike the Parshall flume). Unlike the Parshall flume, the Cutthroat flume lacks a parallel-walled throat section and maintains a flat floor throughout the flume. Using vertical sidewalls throughout, the flume accelerates flow through a contraction of sidewalls until the flow reaches the "throat" of the flume, where the flow is then expanded. Like other flumes, the Cutthroat flume is a fixed hydraulic structure. The Cutthroat flume is a class of flow measurement flume developed during 1966/1967 that is used to measure the flow of surface waters, sewage flows, and industrial discharges. JSTOR ( June 2013) ( Learn how and when to remove this template message).Unsourced material may be challenged and removed. Please help improve this article by adding citations to reliable sources. This article needs additional citations for verification.
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