A sharp-crested triangular weir has been placed in the channel to measure the flow. Upstream of the v-notch weir the cha

[answerhappygod]

A Sharp Crested Triangular Weir Has Been Placed In The Channel To Measure The Flow Upstream Of The V Notch Weir The Cha 1 (45.11 KiB) Viewed 12 times

A sharp-crested triangular weir has been placed in the channel to measure the flow. Upstream of the v-notch weir the channel is rectangle in shape, and downstream of the sharp-crested weir the channel is trapezoidal with a stony bottom and side slopes. The trapezoidal channel is 0.50 meters wide at the base with 2H:1V side slopes. The weir has an invert 0.43 meters above the channel bottom, a weir coefficient of 0.58, and a notch angle I of 1.57 radians. (The invert is the lowest point on the weir over which water flows.) The height of the water above the weir invert is 0.70 meters, and the depth of water in the trapezoidal channel is measured to be 0.40 meters. What is the flow rate in the channel? What is the slope of the trapezoidal channel? If the 7 dischargers increased until the elevation of the water surface in the downstream trapezoidal channel reaches 0.61 meters, what will the headwater elevation be at the triangular weir?