1. A rectangular channel, 20ft wide, carries 400 cfs and discharges onto a 20 ft wide apron with no slope with a mean velocity of 20 fps. What is the height of the hydraulic jump? What energy is lost in the jump? 2. At a certain section of a rectangular channel 10 ft wide, the depth of flow is 2 ft and the flow rate is 400 ft'/s. If a hydraulic jump occurs, will it be upstream or downstream of this section? Prove answer using calculation. 3. Water flows over a spillway into a sluice 10 m wide. Before the jump the water has a depth of 1 m and a velocity of 18 m/s. Determine the Froude number before the jump and the depth of flow after the jump. 4. A rectangular channel, 16 ft wide, carries a flow of 192 cfs. The depth of water on the downstream side of a hydraulic jump is 4.20 ft. What is the upstream depth? What is the loss of head?
1. A rectangular channel, 20ft wide, carries 400 cfs and discharges onto a 20 ft wide apron with no slope with a mean velocity of 20 fps. What is the height of the hydraulic jump? What energy is lost in the jump? 2. At a certain section of a rectangular channel 10 ft wide, the depth of flow is 2 ft and the flow rate is 400 ft'/s. If a hydraulic jump occurs, will it be upstream or downstream of this section? Prove answer using calculation. 3. Water flows over a spillway into a sluice 10 m wide. Before the jump the water has a depth of 1 m and a velocity of 18 m/s. Determine the Froude number before the jump and the depth of flow after the jump. 4. A rectangular channel, 16 ft wide, carries a flow of 192 cfs. The depth of water on the downstream side of a hydraulic jump is 4.20 ft. What is the upstream depth? What is the loss of head?
Traffic and Highway Engineering
5th Edition
ISBN:9781305156241
Author:Garber, Nicholas J.
Publisher:Garber, Nicholas J.
Chapter16: Highway Drainage
Section: Chapter Questions
Problem 13P
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![1. A rectangular channel, 20ft wide, carries 400 cfs and discharges onto a 20 ft wide apron with no slope
with a mean velocity of 20 fps. What is the height of the hydraulic jump? What energy is lost in the
jump?
2. At a certain section of a rectangular channel 10 ft wide, the depth of flow is 2 ft and the flow rate is 400
ft'/s. If a hydraulic jump occurs, will it be upstream or downstream of this section? Prove answer using
calculation.
3. Water flows over a spillway into a sluice 10 m wide. Before the jump the water has a depth of 1 m and a
velocity of 18 m/s. Determine the Froude number before the jump and the depth of flow after the jump.
4. A rectangular channel, 16 ft wide, carries a flow of 192 cfs. The depth of water on the downstream side
of a hydraulic jump is 4.20 ft. What is the upstream depth? What is the loss of head?](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F9d0fdead-3259-4a74-9d3f-c07401debbac%2F3cc16a26-1425-4918-a151-52d7917c3e4e%2F6f14hvr_processed.jpeg&w=3840&q=75)
Transcribed Image Text:1. A rectangular channel, 20ft wide, carries 400 cfs and discharges onto a 20 ft wide apron with no slope
with a mean velocity of 20 fps. What is the height of the hydraulic jump? What energy is lost in the
jump?
2. At a certain section of a rectangular channel 10 ft wide, the depth of flow is 2 ft and the flow rate is 400
ft'/s. If a hydraulic jump occurs, will it be upstream or downstream of this section? Prove answer using
calculation.
3. Water flows over a spillway into a sluice 10 m wide. Before the jump the water has a depth of 1 m and a
velocity of 18 m/s. Determine the Froude number before the jump and the depth of flow after the jump.
4. A rectangular channel, 16 ft wide, carries a flow of 192 cfs. The depth of water on the downstream side
of a hydraulic jump is 4.20 ft. What is the upstream depth? What is the loss of head?
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