CE010606L02 Open Channel Flow & Coastal Hydraulics B.Tech Model Question Paper : mgu.ac.in

Name of the University : Mahatma Gandhi University
Department : Civil Engineering
Degree : B.Tech
Subject Code/Name : CE 010 606 L02/Open Channel Flow and Coastal Hydraulics
Sem : VI
Website : mgu.ac.in
Document Type : Model Question Paper

Download Model/Sample Question Paper : https://www.pdfquestion.in/uploads/mgu.ac.in/5134-CE%20606%20L02.pdf

Open Channel Flow & Coastal Hydraulics :

Sixth Semester :
B.TECH Civil Engineering :
CE 010 606 L02 Open Channel Flow and Coastal Hydraulics : (Elective I)

Related : MGU CE010604 Transportation Engineering-I B.Tech Model Question Paper : www.pdfquestion.in/5131.html

Time : 3 hrs
Max marks : 100
Part A : (Anwser ALL Questions)
1. Differentiate between normal depth and critical depth in open channel flow
2. What do you mean by mild slope and critical slope in open channel flow
3. What are the different types of hydraulic jump
4. Explain the term celerity of wave
5. Differentiate between periodic oscillatory and periodic progressive waves
(3X5)

Part B : (Answer ALL Questions)
6. What is section factor? What are the various characteristics of critical state of flow
7. What are the assumptions used for deriving the Dynamic Equation of Gradually Varied Flow
8. Discuss the practical applications of hydraulic jump
9. What is wave breaking? Explain
10. Give brief description about beach nourishment
(5X5)

Part C : (Answer ALL Questions)
11. From the basics, derive the Manning’s Equation for velocity in an open channel flow
OR
12. A flow of 100 l/s flows down in a rectangular channel of width 0.6m and having adjustable bottom slope. If Chezy’s C is 56 determine the bottom slope necessary for uniform flow with a depth of flow 0.3m. Also find the conveyance and the state of flow.

13. Derive the Dynamic equation for Gradually Varied Flow in wide rectangular channel of width B.
Or

14. A rectangular flume 2m wide carries discharge at the rate of 2 cumecs. The bed slope of the flume is 0.0004. At certain section the depth of flow is 1m. Calculate the distance of the section downstream where the depth of flow is 0.9m. Solve by single step method. Assume rugosity coefficient as 0.014. Is the slope of the channel mild or steep? How is this type of surface profile classified?

16. A horizontal rectangular channel 4m wide carries a discharge of 16cumecs. Determine whether a jump may occur at an initial depth of 0.5m or not. If a jump occurs, determine the sequent depth to this initial depth. Also determine the energy loss in the jump.

17. What are the modes of wave transformation? Explain
Or
18. Explain small amplitude wave theory

19. What is wave forecasting? Explain SMB method
Or
20. What is breakwater? How is it classified? Explain one in detail (12X5)

Syllabus :
CE010 606L02 Open Channel And Coastal Hydraulics (Elective – 1)
Objective :
To develop theoretical and practical knowledge on open channel flow and to acquire basic knowledge on Ocean Engineering and related applications.

Module 1 : (12 Hours)
Open channel flow-Definition-Importance-Classification of flows Uniform flow- Resistance equation-Chezy’s and Manning’s equation-roughness coefficient.-factions affecting roughness coefficient- normal depth and its computation-conveyance – section factor – specific energy – specific force – diagram – critical flow – section factor -hydraulic exponent for critical flow computation and its use for trapezoidal channel-Application of specific energy and specific force in open channel.

Module 2: ( 12 Hours)
Non-uniform flow – friction slope – differential equation of non-uniform flow – types of surface profiles – the point of control – computation by Bresse’s method and the simplified step method.

Module 3 : ( 12 Hours)
Hydraulic jump – sequent depths – dimensionless equation of the jump – loss of head – the jump at the foot of a spillway – criteria for the formation of a jump – use of jump as an energy dissipater. Control of jump by sills – stilling basins

Module 4 : ( 12 Hours)
Water waves – classification into periodic oscillatory, periodic progressive, uniformly progressive, solitary and stationary waves. Ocean waves – Introduction-characteristics-classification based on wave period.

Small amplitude wave theory .expression for the celerity of deep water gravity wave and shallow water gravity wave – determination of the wave length and celerity for any water depth given the deep water wave amount as wave energy (no proof).

Wave Transformations –shoaling- refraction- reflection-diffraction –wave breaking (description only.

Module 5 : ( 12 Hours)
Long period waves-astronomical tide-tsunami, basin oscillations, storm surge, climatologic effects, geologic effects(description only) Wave forecasting – SMB method.

Coastal erosion with special reference to the Kerala Coast Shore protection measures – break waters of different types-sea walls – tetrapods, groynes and beach nourishment.