MUZAFFARPUR INSTITUTE OF TECHNOLOGY Muzaffarpur

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1 MUZAFFARPUR INSTITUTE OF TECHNOLOGY Muzaffarpur COURSE FILE OF Hydraulics and Open Channel Flow (011X10) Faculty Name: Prof. NIRAJ KUMAR Assistant Professor, Department of Civil Engineering Prof. ATUL KUMAR RAHUL Assistant Professor, Department of Civil Engineering

2 Content Sl.No. Topic Page No. 1 Vision of department 2 Mission of department 3 PEO s 4 PO s 5 Course objectives and course outcomes(co) 6 Mapping of CO s with PO s 7 Course syllabus and GATE syllabus 8 Time table 9 Student list 10 Lecture plans 11 Assignments 12 Tutorial sheets 13 Seasonal question paper 14 University question paper 15 Question bank 16 Course materials 17 Result 18 Result analysis 19 Quality measurement sheets

3 VISION OF DEPARTMENT To get recognized as prestigious civil engineering program at national and international level through continuous education, research and innovation. MISSION OF DEPARTMENT To create the environment for innovative and creative idea generation in the engineers to serve the nation with new technologies in Civil engineering. To develop students skill for work in industry, academia and public sector organizations with their technical capabilities to succeed in their fields. To build up feeling of participation, competitiveness, moral and ethical values among students To promote their technical knowledge, leadership and management skill to serve nation at any level of difficulty. PROGRAMME EDUCATIONAL OBJECTIVES (PEOs): Graduates are expected to attain Program Educational Objectives within three to four years after the graduation. Following PEOs of Department of Civil Engineering have been laid down based on the needs of the programs constituencies: PEO1: Contribute to the development of civil engineering projects being undertaken by Govt. and private or any other sector companies. PEO2: Pursue higher education and contribute to teaching, research and development of civil engineering and related field. PEO3: Successful career as an entrepreneur in civil engineering industry PROGRAMME OUTCOMES (PO) PO1 Engineering knowledge: An ability to apply the knowledge of mathematics, science, engineering fundamentals, and an engineering specialization to get the solution of the engineering problems.

4 PO2 Problem analysis: Ability to Identify, formulates, review research literature, and analyze complex engineering problems. PO3 Design/development of solutions: Ability to design solutions for complex engineering problems by considering social, economical and environmental aspects. PO4 Conduct investigations of complex problems: Use research-based knowledge to design, conduct analyse experiments to get valid conclusion. PO5 Modern tool usage:ability to create, select, and apply appropriate techniques, and to model complex engineering activities with an understanding of the limitations. PO6 The engineer and society: Ability to apply knowledge by considering social health, safety, legal and cultural issues. PO7 Environment and sustainability: Understanding ofthe impact of the adopted engineering solutions in social and environmental contexts. PO8 Ethics: Understanding of the ethical issues of the civil engineering and applying ethical principles in engineering practices. PO9 Individual and teamwork:ability to work effectively as an individual or in team, as a member or as a leader. PO10 Communication:An ability to communicate clearly and effectively through different modes of communication. PO11 Project management and finance:ability to handle project and to manage finance related issue PO12 Life-long learning: Recognize the need for, and have the preparation and ability to engage in independent and life-long learning. COURSE OBJECTIVE AND COURSE OUTCOMES:

5 Institute/college Name MuzaffarpurInstitute of Technology, Muzaffarpur Program Name B.E. Civil (IV semester) Course Code/course credits 011X10 (3) Course Name Hydraulics & Open Channel Flow Lecture/ Sessional (per week) 3/0 SEE duration Course coordinator name Prof. Niraj Kumar, Prof. Atul Kumar Rahul Course objective: To develop a basic knowledge of open channel flow relationships by applying fluid properties, hydrostatics, and the conservation equations for mass, momentum, and energy. Course outcomes (CO): CO1: Understanding of the concepts ofboundary layer flow and its applications. CO2: Ability to explain the terms of the open channel flow equations and explain the interactions among the terms. CO3: Ability to solve open channel flow problems through the selection and use of appropriate equations. CO4: Ability to explain the physical mechanisms of hydraulic jumps, surges, and critical, uniform, and gradually-varying flows. CO5: Ability to explain and apply mathematical relationships for hydraulic jumps, surges, and critical, uniform, and gradually-varying flows. MAPPING OF COs AND POs CO/PO PO1 PO2 PO3 PO4 PO5 PO6 PO7 PO8 PO9 PO10 PO11 PO12 CO CO CO CO CO Correlation level: 1- slight (Low) 2- moderate (Medium) 3-substantial (High)

6 COURSE SYLLABUS: 1. Concepts of boundary layer flow: Introduction, boundary layer growth over a flat plate, Boundary layer thickness, laminar boundary layer, turbulent boundary layer, transition from laminar to turbulent flow. 2. Basic concepts of Open Channel flow: Effect of gravity and viscosity on the flow 6ehavior, prismatic and non-prismatic channels. 3. Uniform flow: Theoretical uniform flow equations; hydraulically efficient sections, velocity distribution in open channels, equation for velocity distribution, velocity distribution coefficients. Non-uniform flow: specific energy, Critical flow in a rectangular channel, Discharge curve, Dimensionless specific energy and discharge curve, applications of specific energy, momentum principle applied to open channel flow, specific force, small waves and surges applied to an open channel. 4. Gradually varied flow: Equation of gradually varied flow, classification of channel slopes; classification and examples of surface profiles, computation methods for length of surface profile. 5. RVF. Hydraulic jump: Formation, length and loss of energy in a hydraulic jump, Location, elements, characteristics and types of a hydraulic jump. 6. Introduction to Unsteady flow. GATE Syllabus of geotechnical engineering: Fluid Mechanics:Properties of fluids, fluid statics; Continuity, momentum, energy and corresponding equations; Potential flow, applications of momentum and energy equations; Laminar and turbulent flow; Flow in pipes, pipe networks; Concept of boundary layer and its growth. Hydraulics: Forces on immersed bodies; Flow measurement in channels and pipes; Dimensional analysis and hydraulic similitude; Kinematics of flow, velocity triangles; Basics of hydraulic machines, specific speed of pumps and turbines; Channel Hydraulics Energy-depth relationships, specific energy, critical flow, slope profile, hydraulic jump, uniform flow and gradually varied flow

7 MUZAFFARPUR INSTITUTE OF TECHNOLOGY B.Tech. 4 th (Fourth) Semester (2015 Batch) TIME TABLE WITH EFFECT FROM DAY Branch I ( AM) II ( AM) III ( PM) IV ( PM) V ( PM) VI ( PM) VII ( PM) MON Mech Elect Civil EC IT LT PHAR TUE Mech Elect Civil HOCF (NK,AR) 14 EC IT LT PHAR WED Mech Elect Civil HOCF (NK,AR) 14 EC IT LT PHAR THU Mech Elect Civil HOCF (NK,AR) 14 EC IT LT PHAR FRI Mech Elect SAT Civil EC IT LT PHAR Mech Elect Civil Asst.Prof.-in-charge (TT) Prof.-in-charge (TT) Principal

8 STUDENT LIST: Sl.No College Roll No. AKU Reg. No. Name 1 15C SAURAV KUMAR SINGH 2 15C RAMESH KUMAR 3 16C RAJ KUMAR PRASAD 4 16C AKASH KUMAR 5 16C SHIVAM KUMAR SINGH 6 16C RISABH KUMAR 7 16C JAGAT NARAYAN 8 16C SAURABH KUMAR 9 16C BIPIN BIHARI 10 16C SANDEEP KUMAR GUDDU 11 16C SHASHI SHEKHAR KUMAR 12 16C ROHIT KUMAR 13 16C JYOTI KUMARI 14 16C AVINASH KUMAR 15 16C RAKESH KUMAR 16 16C RICHA SINHA 17 16C ANKIT KUMAR 18 16C NAVNEET KUMAR NAYAN 19 16C SWATI 20 16C AKHILESH KUMAR 21 16C MANISH KUMAR 22 16C VIBHISHAN KUMAR 23 16C ASHISH KUMAR 24 16C YASHBINDRA KUMAR 25 16C VIVEK KUMAR 26 16C SANJEEV KUMAR 27 16C RAUSHAN KUMAR 28 16C SUMIT KUMAR GUPTA 29 16C RAUSHAN KUMAR 30 16C BIPIN KUMAR PATEL 31 16C SONU KUMAR 32 16C SUMIT KUMAR 33 16C RUDRA PRATAP 34 16C CHANDAN KUMAR 35 16C HITESH KUMAR SAH 36 16C PAWAN KUMAR 37 16C RAHUL KUMAR MISHRA

9 38 16C SHAMBHU KUMAR 39 16C RAUSHAN KUMAR 40 16C MANISH KUMAR 41 16C SONU RAJ 42 16C PANKAJ KUMAR 43 16C KAVIRANJAN KUMAR 44 16C JAY PRAKASH KUMAR 45 16C DILIP KUMAR 46 16C DEEPAK KUMAR 47 16C GOLDEN KUMAR 48 16C RIYA KUMARI 49 16C SONU KUMAR 50 16C GHYANENDAR KUMAR 51 16C MANI SHANKAR 52 16C MD QAMRE ALAM 53 16C ABHIJEET RAJ 54 16C RAJEEV RANJAN 55 16C AAYUSH ANANT 56 16C ROSHAN KUMAR 57 16C SONU KUMAR 58 16C SHIKHA PURNIMA 59 17(LE)C PANKAJ KUMAR 60 17(LE)C RATNESH PASWAN 61 17(LE)C RUPESH KUMAR 62 17(LE)C SHASHI KUMAR 63 17(LE)C SAROJ KUMAR 64 17(LE)C PRABHAT RANJAN 65 17(LE)C VISHNUKANT KUMAR 66 17(LE)C MD HASNAIN 67 17(LE)C HASHAN RAZA

10 Text Books: TB1: Flow in Open Channels by K.G. Ranga, Raju, Tata McGraw Hill Publication Co. Ltd., New Delhi. TB2: Flow in Open Channel by K.Subramanya, Tata McGraw Hill Publication Co. Ltd., New Delhi. TB3: Fluid Mechanics by A. K. Jain, Khanna Publishers, Second Edition, Delhi-6, 1980 Reference Books: RB1: Open Channel Hydraulics by V.T.Chow, McGraw Hill International, New York, RB2: Foundation of Fluid Mechanics by S.W. Yuan, Tata McGraw Hill Publication Co. Ltd., New Delhi. RB3: Open Channel Hydraulics by R.H. French, McGraw Hill Book co., New York, RB4: Boundary Layer Theory by H.Schlichting, 7 th Edition, McGraw Hill Book co., New York, COURSE PLAN Topic No. Topic No. of Lecture/ lecture no. Text book 1. Concepts of Boundary layer Flow 8 TB3 Introduction, boundary layer growth 2-3 over a flat plate Boundary layer thickness, laminar 3-5 boundary layer, turbulent boundary layer Transition from laminar to turbulent 5-8 flow. 2. Basic Concepts of Open Channel flow 5 TB1, TB2 Effect of gravity and viscosity on the flow behaviour Prismatic and non-prismatic channels Uniform Flow 6 TB1, TB2 Theoretical uniform flow equations 15 Hydraulically efficient sections 16 Velocity distribution in open channels, 19 equation for velocity distribution, velocity distribution coefficients. Non-uniform flow 8 specific energy, Critical flow in a 21 rectangular channel, Discharge curve Dimensionless specific energy and 24 discharge curve, applications of specific energy

11 Momentum principle applied to open 27 channel flow, specific force, small waves and surges applied to an open channel. 4. Gradually Varied flow 10 TB1, TB2 Equation of gradually varied flow, 30 classification of channel slopes Classification and examples of surface 33 profiles Computation methods for length of surface 37 profile. 5. RVF, Hydraulic Jump 6 TB1, TB2 Formation, length and loss of energy in a 40 hydraulic jump, Location, elements, characteristics and 43 types of a hydraulic jump. 6. Introduction to Unsteady Flow 2 TB1, TB2 Total Number of Lecture 45 DETAILS OF ASSIGNMENTS: Sl.No. Assignment Topic No. 1 Assignment Assignment Assignment Assignment Assignment Assignment Assignment 7 7

12 Hydraulics & Open Channel Flow (01 1X10) Assignment 1 (Concepts of Boundary Layer Flow) 1. Define: (a) Boundary Layer (b) Displacement thickness (c) Momentum thickness (d) Energy thickness (e) Drag Coefficient 2. The velocity distribution in the boundary layer is given by u/u = (y/δ) 1/7. Calculate: (a) Displacement Thickness (b) Momentum thickness (c) Energy thickness 3. Explain: (a) Laminar flow over flat plate (b) Fully developed turbulent flow in a pipe (c) Separation of boundary layer (d) Von Karman Integral Momentum equation (e) Blassius Series Solution (f) Boundary conditions for velocity 4. A smooth thin plate 5m long and 1m wide is placed in an air stream moving at 3m/s with its length parallel with the flow. Calculate the drag force on each side of the plate. The density of the air is 1.2 Kg/m 3 and the kinematic viscosity is 1.6 x 10-5 m 2 /s. 5. A cylinder 80mm diameter and 200mm long is placed in a stream of fluid flowing at 0.5 m/s. The axis of the cylinder is normal to the direction of flow. The density of the fluid is 800 Kg/m 3. The drag force is measured and found to be 30 N. 6. Calculate the drag force for a cylinder chimney 0.9m diameter and 50m tall in a wind blowing at 30m/s given that the drag coefficient is 0.8. The density of the air is 1.2 Kg/m 3.

13 Hydraulics & Open Channel Flow (01 1X10) Assignment 2 (Basic concepts of Open Channel flow) 1. What is an Open Channel Flow? Differentiate between Open Channel Flow and Pipe Flow with the help of a neat sketch. 2. Classify different types of flow: (a) Steady and Unsteady Flow (b) Uniform and Non-Uniform Flow (c) Laminar, Transition and Turbulent Flow (d) Critical, Sub Critical and Super Critical Flow 3. With the help of neat sketch, derive the geometric parameters of the following channel sections: (a) Rectangular (b) Trapezoidal (c) Triangular (d) Circular 4. Explain different types of channels. 5. What are the geometric properties of a channel section? Explain with neat sketch. 6. Classify the following open-channel flow situations: (a) Flow from a sluice gate (b) Flow in a main irrigation canal (c) A river during flood (d) Breaking of a dam (e) Flow over a spillway (f) Sudden opening of a sluice gate (g) Spreading of irrigation water on a field (h) Flow in a sewer

14 Hydraulics & Open Channel Flow (01 1X10) Assignment 3 (Uniform Flow) 1. Find the discharge in the following channels with a bed slope of and n = 0.016: (a) Rectangular, B = 3.0 m, y0 = 1.20 m (b) Trapezoidal, B = 3.0 m, m = 1.5 and y0 = 1.10 m (c) Triangular, m = 1.5, y0 = 1.50 m. 2. A concrete lined trapezoidal channel (η = 0.015) is 8.0 m wide and has a side slope of 2H: IV. The longitudinal slope is Estimate the normal depth in this channel for a discharge of 40 m 3 /s. 3. A trapezoidal channel of 10.0-m bed-width and m = 1.5 carries a discharge of 15.0 m 3 /s at a depth of 1.30 m. Calculate the bed slope required (a) if the channel is lined with smooth concrete and (b) if the channel is an unlined, clean, earthen channel. 4. A circular channel, 2.50 m in diameter, is made of concrete (n = 0.014) and is laid on a slope of 1 in 200. (a) Calculate the discharge if the normal depth is 1.50 m. (b) Calculate the depth of flow for a discharge of 15.0m 3 /s. 5. Calculate the quantity of water that will be discharged at uniform flow depth of 0.9 m in a 1.2-m diameter pipe which is laid at a slope of 1 in Manning s coefficient can be assumed to be A rectangular channel is to be laid on a slope of The sides will be of smooth concrete (n = 0.013). What width of channel is necessary to carry a discharge of 9.0m 3 /s with a normal depth of 1.60 m? 7. An old rectangular canal having a width of 5.0 m and a slope of was gauged to determine its roughness coefficient. If a discharge of 18.0m 3 /s was indicated when the depth of uniform flow was 2.0 m, estimate the value of Manning s n. 8. What size of concrete pipe (n = 0.015) is required to carry a flow of 2.0 m 3 /s at a depth of 0.9m diameter, when laid on a slope of ? 9. A trapezoidal channel of 3.0-m bed width and side slope of 1.5 horizontal: 1 vertical carries a full supply of 10m 3 /s at a depth of 1.50 m. What would be the discharge at half of full supply depth (i.e. at 0.75 m)? What would be the depth at half of full supply discharge?

15 Hydraulics & Open Channel Flow (01 1X10) Assignment 4 (Non Uniform Flow) 1. A trapezoidal channel with a bed width of 4.0 m and side slopes of 1.5 H: I V carries a certain discharge. (a) Based on observations, if the critical depth of the flow is estimated as 1.70 m, calculate the discharge in the channel. (b) If this discharge is observed to be flowing at a depth of 2.50 m in a reach, estimate the Froude number of the flow in that reach. 2. Find the critical depth for a specific energy head of 1.5 m in the following channels: (a) Rectangular channel, B = 2.0 m (b) Triangular channel, m = 1.5 (c) Trapezoidal channel, B = 2.0 m and m = 1.0 (d) Circular channel, D = 1.50 m 3. A trapezoidal channel has a bottom width of 6.0 m and side slopes of 1: 1. The depth of flow is 1.5 m at a discharge of 15 m3/s. Determine the specific energy and alternate depth. 4. A channel has a cross section given by the relationship A= y2.5. For a critical depth of 0.5 m in this channel, estimate the (i) discharge and (ii) specific energy. 5. A triangular channel has an apex angle of 60o and carries a flow with a velocity of 2.0 m/s and depth of 1.25 m. (a) Is the flow subcritical or super-critical? (b) What is the critical depth? (c) What is the specific energy? (d) What is the alternate depth possible for this specific energy? 6. Calculate the discharges and specific energies corresponding to the following critical depths in circular channels: (a) y c = m, D = 1.50m, and (b) y c = 0.40 m, D = 2.0 m. 7. What is the critical depth corresponding to a discharge of 5.0 m3/s in (a) a trapezoidal channel of B = 0.80 m and m = 1.5, and (b) a circular channel of D = 1.50 m? 8. In a circular channel of diameter D = 1.50 m, the critical depth y c is known to occur at a specific energy of 1.80 m. Estimate the value of y c. 9. A circular channel is to carry a discharge of 558 litres/s. Find the diameter of the conduit such that the flow is critical when the conduit is running quarter full. 10. A circular culvert of 1.20-m diameter is flowing half full and the flow is in critical state. Estimate the discharge and the specific energy.

16 Hydraulics & Open Channel Flow (01 1X10) Assignment 5 (Gradually Varied Flow) 1. A 3.0-m wide rectangular channel has a longitudinal slope of 150 mm/km and Manning s n = When the discharge in the channel is 0.85m3/s, estimate the slope of the water surface in the channel (relative to the horizontal) at a point where the depth of flow is 0.75 m. 2. In a very long, wide rectangular channel the discharge intensity is 3.0 m3/s/meterwidth. The bed slope of the channel is and Manning s n = At a certain section in this channel, the depth of flow is observed to be 0.90 m. What type of GVF profile occurs in the neighborhood of this section? 3. In a 4.0-m wide rectangular channel (n = 0.017) the bed slope is When the channel is conveying 10.0 m3/s of flow, estimate the nature of GVF profiles at two far away sections P and R in this channel where the depth of flow is measure as 1.6 m and 2.1 m respectively. 4. A long and wide rectangular channel (n = 0.016) has a discharge intensity of 4.0 m3/s per meter width. If the bed slope changes from to at a section, sketch the possible GVF profiles due to this break in grade. 5. Analyse the flow profile in a 4.0-m wide rectangular channel (n = 0.015), carrying a discharge of 15.0 m3/s. The bed slope of the channel is 0.02 and a 1.5 m high weir (Cd = 0.70) is built on the downstream end of the channel. 6. At a certain section in a rectangular channel, a constriction of the channel produces a choking condition. Sketch the GVF profile produced on the upstream as a result of this, if the channel is on (a) mild slope and (b) steep slope. 7. Sketch the possible GVF profiles in the following serial arrangement of channels and control. The flow is from left to right: (a) steep horizontal mild slope (b) mild sluice gate steep horizontal sudden drop (c) steep steeper mild milder slope (d) free intake steep sluice gate mild slope (e) steep mild sluice gate mild sudden drop (f) sluice gate adverse horizontal steep slope

17 Hydraulics & Open Channel Flow (01 1X10) Assignment 6 (Rapidly Varied Flow) 1. A hydraulic jump occurs in a horizontal rectangular channel with sequent depths of 0.70 m and 4.2 m. Calculate the rate of flow per unit width, energy loss and the initial Froude number. 2. A hydraulic jump occurs in a horizontal rectangular channel at an initial Froude number of What percentage of initial energy is lost in this jump? 3. A rectangular channel carrying a supercritical stream is to be provided with a hydraulic jump type of energy dissipater. If it is desired to have an energy loss of 5 m in the jump when the inlet Froude number is 8.5, determine the sequent depths. 4. In a hydraulic jump occurring in a horizontal, rectangular channel it is desired to have an energy head loss equal to 6 times the supercritical flow depth. Calculate the Froude number of the flow necessary to have this jump. 5. In a hydraulic jump taking place in a horizontal, rectangular channel a sequent-depth ratio of 10 is desired. What initial Froude number would produce this ratio? What would be the Froude number after the jump? 6. In a hydraulic jump taking place in a horizontal rectangular channel the discharge intensity and head loss are found to be 4.7 m 3 /s/m and 6.0 m respectively. Determine the sequent depths of the jump. 7. Water from a low dam is released through a sluice gate on a horizontal rectangular channel. The depth of water upstream of the sluice gate is 16.0 m above the channel bed and the gate opening is 1.5 m. The sluice gate can be assumed to be sharp-edged. If a free hydraulic jump is formed just downstream of the gate, find the sequent depths and the percentage of the initial energy lost in the jump. 8. A horizontal trapezoidal channel of 2.0-m bed width and side slopes 2 horizontal : 1 vertical carries a discharge of m 3 /s at a depth of 0.20 m. If a hydraulic jump takes place in this channel, calculate the sequent depth and energy loss. 9. A sluice gate discharges 10.0 m 3 /s per meter width in to a wide rectangular channel of n = and bottom slope S 0 = The depth of flow at the vena contracta is 0.40 m. If the channel ends in a sudden drop at a distance of 1300 m downstream of the gate, locate the position of the jump.

18 Hydraulics & Open Channel Flow (01 1X10) Assignment 7 (Introduction to Unsteady Flow) 1. Define Unsteady Flow. Explain the different combinations of unsteady flow with examples. 2. What is Surge? Explain surge moving upstream and surge moving downstream with neat sketches. 3. Define Celerity. A sluice gate in a wide channel controls the flow of water. When the flow in the downstream channel was at a depth of 2.0 m with a velocity of 4.0 m/s, the sluice gate was partially closed, instantaneously, to reduce the discharge to 25% of its initial value. Estimate the velocity and depth at the gate as well as the surface profile of the negative wave downstream of the gate. 4. A 3.0-m wide rectangular channel has a flow of 3.60m 3 /s with a velocity of 0.8 m/s. If a sudden release of additional flow at the upstream end of the channel causes the depth to rise by 50 per cent, determine the absolute velocity of the resulting surge and the new flow rate. 5. A rectangular channel carries a flow with a velocity of 0.65 m/s and depth of 1.40 m. If the discharge is abruptly increased threefold by a sudden lifting of a gate on the upstream, estimate the velocity and the height of the resulting surge. 6. A 4.0-m wide rectangular channel carries a discharge of 12.0m 3 /s at a depth of 2.0 m. Calculate the height and velocity of a surge produced when the flow is suddenly stopped completely by the full closure of a sluice gate at the downstream end.

19 MUZAFFARPURINSTITUTE OF TECHNOLOGY, MUZAFFARPUR B.Tech4 th Semester Mid-Term Examination, 2018 Hydraulics and Open Channel Flow (011X10) Time: 2 hours Full Marks: 20 Instructions: (i) All questions carry equal marks. (ii) There are Sixquestions in this paper. (iii) Attempt Four questions in all. (iv) Question No. 1 is compulsory. 1. Chose the correct option of the following (any five) (a) If the Reynold s number is more than 5 x 10 5, the boundary layer is called (i) Laminar boundary layer (ii) Turbulent boundary layer (iii) Either of the above (iv) None of the above (b) In the uniform flow in a channel of small bed slope, the hydraulic grade line (i) Coincides with the bed (ii) Is considerably below the free surface (iii) Is considerably above the free surface (iv) Coincides with the free surface (c) If the bed particle size D 50 of a natural stream is 2.0 mm, then by Strickler`s formula, the manning`s n for the channel is about (i) (ii) (iii) (iv) (d) Which one of the following has dimensions: (i) Reynold`s Number (ii) Froude Number (iii) Chezy`s Constant (iv) None of these

20 (e) In uniform flow there is a balance between (i) Gravity and Inertial forces (ii) Gravity and Frictional forces (iii) Inertial and Viscous forces (iv) Inertial and Frictional forces (f) At critical depth (i) The discharge is minimum for a given specific energy (ii) The discharge is minimum for a given specific force (iii) The discharge is maximum for a given specific energy (iv) The discharge is maximum for a given specific force (g) A triangular section is hydraulically-efficient when the vertex angle is (i) 30 0 (ii) 60 0 (iii) 90 0 (iv) (a) Define Uniform flow. Write the features of Uniform flow. (b) Find the discharge in the following channels with a bed slope of and n=0.016: (i) Rectangular, B = 2.0m and y 0 = 1.20m (ii) Trapezoidal, B = 2.0m, m = 1.5 and y 0 = 1.10m (iii)triangular, m = 1.5 and y 0 = 2.50m, 3. (a) Define hydraulically efficient section. How efficient section is also economical? (b) It is required to convey 10cumecs of water at a mean velocity of 1.25 m/s. Calculate the dimensions of the most efficient section of the channel whose shape is: (i) Rectangular (ii) Trapezoidal (iii) Triangular 4. Derive the expressions of geometric parameters for the most economical (a) Trapezoidal channel (b) Rectangular channel sections with the help of a neat sketch. 5. (a) Define Specific energy. (b) Calculate the critical depth and the corresponding specific energy for a discharge of 5.0 m 3 /s in the following channels: (i) Rectangular channel, B = 2.0 m (ii) Triangular channel, m = The velocity distribution in the boundary layer is given by u/u = (y/δ) 1/7. Calculate: (a) Displacement Thickness (b) Momentum thickness

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28 Marks of attendance Class test End semester exam Total Result of the students Theory Sl.No College Roll No. AKU Reg. No. Name 1 15C SAURAV KUMAR SINGH C RAMESH KUMAR 4 4 Ab C RAJ KUMAR PRASAD C AKASH KUMAR C SHIVAM KUMAR SINGH C RISABH KUMAR C JAGAT NARAYAN C SAURABH KUMAR C BIPIN BIHARI C SANDEEP KUMAR GUDDU C SHASHI SHEKHAR KUMAR C ROHIT KUMAR C JYOTI KUMARI C AVINASH KUMAR C RAKESH KUMAR C RICHA SINHA C ANKIT KUMAR C NAVNEET KUMAR NAYAN C SWATI C AKHILESH KUMAR C MANISH KUMAR C VIBHISHAN KUMAR C ASHISH KUMAR C YASHBINDRA KUMAR C VIVEK KUMAR C SANJEEV KUMAR C RAUSHAN KUMAR C SUMIT KUMAR GUPTA C RAUSHAN KUMAR C BIPIN KUMAR PATEL C SONU KUMAR C SUMIT KUMAR C RUDRA PRATAP C CHANDAN KUMAR C HITESH KUMAR SAH

29 36 16C PAWAN KUMAR C RAHUL KUMAR MISHRA C SHAMBHU KUMAR C RAUSHAN KUMAR C MANISH KUMAR C SONU RAJ C PANKAJ KUMAR C KAVIRANJAN KUMAR C JAY PRAKASH KUMAR C DILIP KUMAR C DEEPAK KUMAR C GOLDEN KUMAR C RIYA KUMARI C SONU KUMAR C GHYANENDAR KUMAR C MANI SHANKAR C MD QAMRE ALAM C ABHIJEET RAJ C RAJEEV RANJAN C AAYUSH ANANT C ROSHAN KUMAR C SONU KUMAR C SHIKHA PURNIMA (LE)C PANKAJ KUMAR (LE)C RATNESH PASWAN (LE)C RUPESH KUMAR (LE)C SHASHI KUMAR (LE)C SAROJ KUMAR (LE)C PRABHAT RANJAN (LE)C VISHNUKANT KUMAR (LE)C MD HASNAIN (LE)C HASHAN RAZA

30 Number of students RESULT ANALYSIS <60% 60-70% 70-80% 80-90% % Theory 1 CO MAPPING WITH DIRECTASSESSMENT TOOLS COs CT1 MSE SEE LAB Assignment CO1 - Q1, Q6 A1 CO2 Q1, Q2, Q3 Q1, Q2 A2,A3,A4 CO3 Q1, Q2, Q3 Q1, Q5 A2,A3,A4 CO4 - - A5,A6,A7 CO5 - - A5,A6,A7

31 Quality Measurement Sheets a. Course End Survey ACADEMIC YEAR: 2018 SEM: 4th DATE: 01/05/2018 COURSE:B.Tech. CLASS: Hydraulics and FACULTY: Niraj Kumar, Atul Kumar Open Channel Flow. Rahul Please evaluate on the following scale: Excellent(E) Good(G) Average(A) Poor(P) No Comment(NC) SNO QUESTIONAIRE E 5 G 4 A 3 P 2 NC 1 Avg % GENERAL OBJECTIVES: 1 Did the course achieve its stated objectives? Have you acquired the stated skills? Whether the syllabus content is adequate to achieve the 3 60 objectives? 4 Whether the instructor has helped you in acquiring the stated skills? Whether the instructor has given real life applications of the 4 80 course? 6 Whether tests, assignments, projects and grading were fair? The instructional approach (es) used was (were) appropriate to 4 80 the course. 8 The instructor motivated me to do my best work I gave my best effort in this course To what extent you feel the course outcomes have been achieved Please provide written comments: a) What was the most effective part of this course Efficient Channels, Specific Energy, Rapidly Varied Flow, Gradually Varied Flow. b) What are your suggestions, if any, for changes that would improve this course? Syllabus needs to be modified. c) Given all that you learned as a result of this course, what do you consider to be most important? Basic understanding of Open Channel, slopes. d) Do you have any additional comments or clarifications to make regarding your responses to any particular survey item? None e) Do you have any additional comments or suggestions that go beyond issues addressed on this survey? none

32 TEACHING EVALUATION COLLEGE NAME Department of Civil Engineering Course Assessment ACADEMIC YEAR: 2018 SEM: 4th DATE:12/5/2018 COURSE:B.tech CLASS: Hydraulics and Open Channel Flow FACULTY: Niraj Kumar, Atul Kumar Rahul Assessment Criteria Used Attainment Level Remarks Direct (d) Theory External Marks - - Internal Marks (Theory) 2.5/3 83% Assignments 3 100% Tutorials N.A. N.A. Indirect (id) Course End Survey 4/5 80% Theory: Course Assessment (0.6 d+ 0.4 id) 81.8%