Parshall flume: The Parshall measuring flume is in the channel. After the water flow section is contracted through a narrow throat section in a gradual section, and then passed through a relaxed gradual section, the critical water depth and It is used to observe the amount of water. Its type can be divided into three types: small, medium, and large by the size of the throat. According to its current state, it can be divided into free flow and undercurrent.
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Methods of measuring pumping quantities
Parshall flume
