Consider the figure below where a broad crested weir is installed in a horizontal channel. Determine the following: a. If the weir is 12m wide and 1.5m high, solve for the discharge and discharge coefficient Cw for the weir if the upstream depth is 3.2m. b. Depth of water directly above the weir. c. Velocity of water directly above the weir.

Structural Analysis
6th Edition
ISBN:9781337630931
Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
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Consider the figure below where a broad crested weir is installed in a horizontal
channel. Determine the following:
a. If the weir is 12m wide and 1.5m high, solve for the discharge and discharge
coefficient Cw for the weir if the upstream depth is 3.2m.
b. Depth of water directly above the weir.
c. Velocity of water directly above the weir.
d. Depth of water above the weir if P = 1.2m.
2g
d
ANSWER:
dc
a) Cw = 0.445, Q = 34.95m³/sec
b) dc = 0.953m
21
bi
H
P
c) Vc = 3.057m/s
d) d = 2.56m
Transcribed Image Text:Consider the figure below where a broad crested weir is installed in a horizontal channel. Determine the following: a. If the weir is 12m wide and 1.5m high, solve for the discharge and discharge coefficient Cw for the weir if the upstream depth is 3.2m. b. Depth of water directly above the weir. c. Velocity of water directly above the weir. d. Depth of water above the weir if P = 1.2m. 2g d ANSWER: dc a) Cw = 0.445, Q = 34.95m³/sec b) dc = 0.953m 21 bi H P c) Vc = 3.057m/s d) d = 2.56m
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Kindly Solve Sub-Part d. d. Depth of water above the weir if P = 1.2m

Consider the figure below where a broad crested weir is installed in a horizontal
channel. Determine the following:
a. If the weir is 12m wide and 1.5m high, solve for the discharge and discharge
coefficient Cw for the weir if the upstream depth is 3.2m.
b. Depth of water directly above the weir.
c. Velocity of water directly above the weir.
d. Depth of water above the weir if P = 1.2m.
2g
d
ANSWER:
dc
a) Cw = 0.445, Q = 34.95m³/sec
b) dc = 0.953m
21
bi
H
P
c) Vc = 3.057m/s
d) d = 2.56m
Transcribed Image Text:Consider the figure below where a broad crested weir is installed in a horizontal channel. Determine the following: a. If the weir is 12m wide and 1.5m high, solve for the discharge and discharge coefficient Cw for the weir if the upstream depth is 3.2m. b. Depth of water directly above the weir. c. Velocity of water directly above the weir. d. Depth of water above the weir if P = 1.2m. 2g d ANSWER: dc a) Cw = 0.445, Q = 34.95m³/sec b) dc = 0.953m 21 bi H P c) Vc = 3.057m/s d) d = 2.56m
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