Exam Details
| Subject | Flow in Open Channel | |
| Paper | ||
| Exam / Course | B.Tech. Civil (Construction Management) / (Water Resources Engineering)/ (Aero Space Engineering) BTCM-BTWRE | |
| Department | School of Engineering & Technology (SOET) | |
| Organization | indira gandhi national open university | |
| Position | ||
| Exam Date | December, 2015 | |
| City, State | new delhi, |
Question Paper
1. Write short notes on any seven of the following:
Wide rectangular channel
CI Flow profile
Alternate depth
Reynolds Number
Prismatic channels
Gradually Varied Flow (G.V.F.)
Flow regimes
Specific force
Normal slope
The Chezy's coefficient
What are the similarities and dissimilarities of the following flow profile computation methods:
Bakhmeteff method
Chow's method
Standard stop method
What do you understand by the Hydraulic Exponent of uniform flow computation Prove that
2y/3A (ST-2R dP/dy).
All are standard notations used in open channel flow.
What is modified Moody Diagram Describe the characteristics of Turbulent Region using this diagram.
Find out the normal depth of flow for a discharge of 0·5 in a circular culvert of 0·80 m diameter with Manning's coefficient of roughness n 0·0016 and bed slope S 0·0015.
What are the common uses of Specific energy principle to flow situations? Explain the Accessibility Problem with the help of a neat sketch.
Define specific energy and specific force. Illustrate both curves for a parabolic section.
In a horizontal rectangular channel of 1.5 m bottom width, determine whether a well-defined and free jump will be formed, if the flow in the channel is 1.5 and Y1 =0·015 m and Y2 =0·40 m.
Water flows in a horizontal channel with a velocity of 8·0 m/s at a depth of 1·0 m. Find the conjugate depth and the energy loss in the jump.
Describe the direct stop method of profile computation in Gradually Varied Flow in a channel section which is prismatic in nature having a mild slope and rocky bed profile in a hilly watershed. What will happen to the flow in a steep drop situation?
How does a hydraulic jump set in a mild open channel Use a neat diagram to explain the development of M 3 profile in such a section. Also clearly specify the conditions leading to the same.
What do you understand by Q-constant curve? What is its applicability? Discuss the following:
C-curve
N-line
Z-line
What is a control section What is the applicability of artificial control section in canal regulation structures
In order to solve the problem of G.V.F. in prismatic and non-prismatic channels of any shape, which method is employed to compute the water surface profile? Discuss in detail with the help of a diagram.
Prove that for a wide rectangular channel the G.V.F. profile can be expressed as
dx Yn/So du,
using the direct integration or BRESSE method.
Wide rectangular channel
CI Flow profile
Alternate depth
Reynolds Number
Prismatic channels
Gradually Varied Flow (G.V.F.)
Flow regimes
Specific force
Normal slope
The Chezy's coefficient
What are the similarities and dissimilarities of the following flow profile computation methods:
Bakhmeteff method
Chow's method
Standard stop method
What do you understand by the Hydraulic Exponent of uniform flow computation Prove that
2y/3A (ST-2R dP/dy).
All are standard notations used in open channel flow.
What is modified Moody Diagram Describe the characteristics of Turbulent Region using this diagram.
Find out the normal depth of flow for a discharge of 0·5 in a circular culvert of 0·80 m diameter with Manning's coefficient of roughness n 0·0016 and bed slope S 0·0015.
What are the common uses of Specific energy principle to flow situations? Explain the Accessibility Problem with the help of a neat sketch.
Define specific energy and specific force. Illustrate both curves for a parabolic section.
In a horizontal rectangular channel of 1.5 m bottom width, determine whether a well-defined and free jump will be formed, if the flow in the channel is 1.5 and Y1 =0·015 m and Y2 =0·40 m.
Water flows in a horizontal channel with a velocity of 8·0 m/s at a depth of 1·0 m. Find the conjugate depth and the energy loss in the jump.
Describe the direct stop method of profile computation in Gradually Varied Flow in a channel section which is prismatic in nature having a mild slope and rocky bed profile in a hilly watershed. What will happen to the flow in a steep drop situation?
How does a hydraulic jump set in a mild open channel Use a neat diagram to explain the development of M 3 profile in such a section. Also clearly specify the conditions leading to the same.
What do you understand by Q-constant curve? What is its applicability? Discuss the following:
C-curve
N-line
Z-line
What is a control section What is the applicability of artificial control section in canal regulation structures
In order to solve the problem of G.V.F. in prismatic and non-prismatic channels of any shape, which method is employed to compute the water surface profile? Discuss in detail with the help of a diagram.
Prove that for a wide rectangular channel the G.V.F. profile can be expressed as
dx Yn/So du,
using the direct integration or BRESSE method.
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