Problem 4 Water flows in a rectangular channel with channel width B = 4.0 (m). The specific energy diagram (SED) of this flow is given in the figure below. (y =0.2 m) (1) Estimate the channel discharge Q from the given SED. (2) If the water depth in the channel at a cross section is y₁ = 0.45 (m). The channel bottom is raised smoothly by Az = 0.2 (m). Determine if the flow will be "choked" by the raised step. If yes, estimate the "backed up” depth upstream, y₁. If not, what is the water depth y₂ above the step? y (m) 0.55 0.5 0.45 0.4 0.35 > 0.3 0.25 0.2 0.15 0.1 0.2 0.25 0.3 0.35 0.4 0.45 0.5 0.55 E (m)
Problem 4 Water flows in a rectangular channel with channel width B = 4.0 (m). The specific energy diagram (SED) of this flow is given in the figure below. (y =0.2 m) (1) Estimate the channel discharge Q from the given SED. (2) If the water depth in the channel at a cross section is y₁ = 0.45 (m). The channel bottom is raised smoothly by Az = 0.2 (m). Determine if the flow will be "choked" by the raised step. If yes, estimate the "backed up” depth upstream, y₁. If not, what is the water depth y₂ above the step? y (m) 0.55 0.5 0.45 0.4 0.35 > 0.3 0.25 0.2 0.15 0.1 0.2 0.25 0.3 0.35 0.4 0.45 0.5 0.55 E (m)
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
Related questions
Question
![Problem 4
Water flows in a rectangular channel with channel width
B = 4.0 (m). The specific energy diagram (SED) of this flow is given in the figure
below. (y =0.2 m)
(1) Estimate the channel discharge Q from the given SED.
(2) If the water depth in the channel at a cross section is y₁ = 0.45 (m). The channel
bottom is raised smoothly by Az = 0.2 (m). Determine if the flow will be "choked"
by the raised step. If yes, estimate the "backed up” depth upstream, y₁. If not, what is
the water depth y₂ above the step?
y (m)
0.55
0.5
0.45
0.4
0.35
> 0.3
0.25
0.2
0.15
0.1
0.2
0.25
0.3
0.35 0.4
0.45 0.5
0.55
E (m)](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fc9c718ab-2d20-41cf-95c2-84548e9f2986%2Fe1232257-0bdb-443d-9cbd-2c17b2aff044%2Fkicjwzi_processed.jpeg&w=3840&q=75)
Transcribed Image Text:Problem 4
Water flows in a rectangular channel with channel width
B = 4.0 (m). The specific energy diagram (SED) of this flow is given in the figure
below. (y =0.2 m)
(1) Estimate the channel discharge Q from the given SED.
(2) If the water depth in the channel at a cross section is y₁ = 0.45 (m). The channel
bottom is raised smoothly by Az = 0.2 (m). Determine if the flow will be "choked"
by the raised step. If yes, estimate the "backed up” depth upstream, y₁. If not, what is
the water depth y₂ above the step?
y (m)
0.55
0.5
0.45
0.4
0.35
> 0.3
0.25
0.2
0.15
0.1
0.2
0.25
0.3
0.35 0.4
0.45 0.5
0.55
E (m)
Expert Solution
![](/static/compass_v2/shared-icons/check-mark.png)
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
Step by step
Solved in 2 steps with 2 images
![Blurred answer](/static/compass_v2/solution-images/blurred-answer.jpg)
Recommended textbooks for you
![Structural Analysis](https://compass-isbn-assets.s3.amazonaws.com/isbn_cover_images/9781337630931/9781337630931_smallCoverImage.jpg)
![Structural Analysis (10th Edition)](https://www.bartleby.com/isbn_cover_images/9780134610672/9780134610672_smallCoverImage.gif)
Structural Analysis (10th Edition)
Civil Engineering
ISBN:
9780134610672
Author:
Russell C. Hibbeler
Publisher:
PEARSON
![Principles of Foundation Engineering (MindTap Cou…](https://www.bartleby.com/isbn_cover_images/9781337705028/9781337705028_smallCoverImage.gif)
Principles of Foundation Engineering (MindTap Cou…
Civil Engineering
ISBN:
9781337705028
Author:
Braja M. Das, Nagaratnam Sivakugan
Publisher:
Cengage Learning
![Structural Analysis](https://compass-isbn-assets.s3.amazonaws.com/isbn_cover_images/9781337630931/9781337630931_smallCoverImage.jpg)
![Structural Analysis (10th Edition)](https://www.bartleby.com/isbn_cover_images/9780134610672/9780134610672_smallCoverImage.gif)
Structural Analysis (10th Edition)
Civil Engineering
ISBN:
9780134610672
Author:
Russell C. Hibbeler
Publisher:
PEARSON
![Principles of Foundation Engineering (MindTap Cou…](https://www.bartleby.com/isbn_cover_images/9781337705028/9781337705028_smallCoverImage.gif)
Principles of Foundation Engineering (MindTap Cou…
Civil Engineering
ISBN:
9781337705028
Author:
Braja M. Das, Nagaratnam Sivakugan
Publisher:
Cengage Learning
![Fundamentals of Structural Analysis](https://www.bartleby.com/isbn_cover_images/9780073398006/9780073398006_smallCoverImage.gif)
Fundamentals of Structural Analysis
Civil Engineering
ISBN:
9780073398006
Author:
Kenneth M. Leet Emeritus, Chia-Ming Uang, Joel Lanning
Publisher:
McGraw-Hill Education
![Sustainable Energy](https://www.bartleby.com/isbn_cover_images/9781337551663/9781337551663_smallCoverImage.gif)
![Traffic and Highway Engineering](https://www.bartleby.com/isbn_cover_images/9781305156241/9781305156241_smallCoverImage.jpg)
Traffic and Highway Engineering
Civil Engineering
ISBN:
9781305156241
Author:
Garber, Nicholas J.
Publisher:
Cengage Learning