At the end of a channel is a sharp edged rectangular weir with a length of 400mm and a coefficient of discharge of 0.65. The water is flowing at a depth of 0.16 m above the crest of the weir. If this weir is replaced by a 90 V-notch weir with the same coefficient of discharge, what will be the necessary upstream depth of water to achieve the same discharge as the rectangular weir, Round off your answer to two decimal places Use the following equations for discharge Rectangular Weir V-Notch Weir Q.-CVig tan 2e tan 15

Structural Analysis
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ISBN:9781337630931
Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
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At the end of a channel is a sharp - edged rectangular weir with a length of 400mm and a
coefficient of discharge of 0.65. The water is flowing at a depth of 0.16 m above the crest
of the weir. If this weir is replaced by a 90 V-notch weir with the same coefficlent of
discharge, what will be the necessary upstream depth of water to achieve the same
discharge as the rectangular weir. Round off your answer to two decimal places.
Use the following equations for discharge
Rectangular Weir
Q. - CL/2g H/2
%3D
V-Notch Weir
Q. - Ca5 V2g tan
15
Transcribed Image Text:At the end of a channel is a sharp - edged rectangular weir with a length of 400mm and a coefficient of discharge of 0.65. The water is flowing at a depth of 0.16 m above the crest of the weir. If this weir is replaced by a 90 V-notch weir with the same coefficlent of discharge, what will be the necessary upstream depth of water to achieve the same discharge as the rectangular weir. Round off your answer to two decimal places. Use the following equations for discharge Rectangular Weir Q. - CL/2g H/2 %3D V-Notch Weir Q. - Ca5 V2g tan 15
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