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To measure discharge using a Venturi flume, the basic principle involves utilizing the change in fluid velocity and pressure as water flows through the flume. The discharge (Q) can be expressed using the formula:

[ Q = A_1 \cdot v_1 = A_2 \cdot v_2 ]

where ( A_1 ) and ( A_2 ) are the cross-sectional areas of the flume at the upstream and throat sections, respectively, and ( v_1 ) and ( v_2 ) are the corresponding flow velocities. Additionally, applying Bernoulli's equation allows for the relationship between the velocity and the height difference between the upstream and throat sections, leading to the final expression for discharge based on the throat's hydraulic head.

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2w ago

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