Hydraulics

1. Pipe flow (differences between pipe flow and open channel flow) 13 Minutes _Free

2. Reynold's experiment and flow based on Reynold's number 8 Minutes _Free

3. Laminar flow in circular pipe (expression for shear stress) 14 Minutes

4. Laminar flow in circular pipe (velocity distribution) 8 Minutes

5. Relation between average velocity and maximum velocity 9 Minutes

6. Laminar flow in circular pipe (head loss) 7 Minutes

7. Numerical 1 (laminar flow) 24 Minutes

8. Numerical 2 (laminar flow) 19 Minutes

9. K.E. and momentum correction factors 7 Minutes

10. Calculation of K.E. and momentum correction factors for laminar flow 10 Minutes

11. Turbulent flow (basic features) 9 Minutes

12. Shear stress development in turbulent flow 5 Minutes

13. Boussinesq theory of turbulence 4 Minutes

14. Reynold's principle of turbulence 5 Minutes

15. Prandtl's mixing length theory 8 Minutes

16. Velocity distribution for turbulent flow (Prandtl's universal velocity distribution, applicable for both smooth and rough pipe) 12 Minutes

17. Analysis of velocity distribution in turbulent flow 8 Minutes

18. Hydrodynamically smooth and rough pipe 7 Minutes

19. Velocity distribution equation for turbulent flow in smooth pipe 13 Minutes

20. Velocity distribution equation for turbulent flow inrough pipe 4 Minutes

21. Velocity distribution equation in terms of mean velocity 9 Minutes

22. Relation between velocity at any point and average velocity, location of average velocity 8 Minutes

23. Darcy-Weisbach equation 17 Minutes

24. Resistance to flow of fluid in smooth and rough pipes 24 Minutes

25. Numerical 1 (Turbulent flow) 16 Minutes

26. Numerical 2 (Turbulent flow) 10 Minutes

27. Numerical 3 (Turbulent flow) 10 Minutes

28. Numerical 4 (Turbulent flow, concept of hydraulic radius) 15 Minutes

29. Numerical 5 (Turbulent flow) 13 Minutes

30. Energy losses in pipe 5 Minutes

31. Loss of head due to sudden enlargement of pipe 8 Minutes

32. Head loss due to sudden contraction of pipe 7 Minutes

33. Other types of minor losses 5 Minutes

34. HGL and TEL 9 Minutes

35. Numerical (minor losses) 11 Minutes

36. Numerical (HGL and TEL) 25 Minutes

1. Three categories of pipe flow problems 7 Minutes

2. Category 1 (procedure to solve) 3 Minutes

3. Numerical (Category 1) 6 Minutes

4. Category 2 (procedure for solving) 5 Minutes

5. Numerical 2 (Category 2) 11 Minutes

6. Numerical 4 (Category 2) 8 Minutes

7. Category 3 (procedure for solving) 4 Minutes

8. Numerical 4 (Category 3) 10 Minutes

9. Numerical 5 (Category 3) 9 Minutes

10. Pipes in series and parallel, Concept of equivalent pipe, Dupuit's equation 14 Minutes

11. Numerical 6 (Pipes in series and parallel) 7 Minutes

11. Numerical 7 (Pipes in series and parallel) 10 Minutes

12. Numerical 8 (Pipes in series and parallel) 10 Minutes

13. Numerical 9 (Pipes in series and parallel, 2075 Baiisakh) 13 Minutes

14. Siphon and its application (intro) 8 Minutes

15. Characteristic parameters of siphon 15 Minutes

16. Numerical 10 (siphon) 8 Minutes

17. Numerical 11 (siphon) 8 Minutes

1. Introduction 12 Minutes

2. Procedure for solving Type 1- Problem (3 reservoir problem) 8 Minutes

3. Numerical (Type 1) 10 Minutes

4. Procedure for solving Type 2-Problem (3 reservoir problem) 8 Minutes

5. Numerical 2 (Type 2) 16 Minutes

6. Procedure for solving Type 3-Problem (3 reservoir problem) 11 Minutes

7. Numerical 3 (Type 3) 27 Minutes

8. Numerical 4 (3 reservoir problem. 2073 Magh) 15 Minutes

9. Numerical 5 (3 reservoir problem, 2073 Bhadra, 2076 Baisakh) 16 Minutes

10. Introduction to pipe network problem 9 Minutes

11. Hardy Cross Method 13 Minutes

12. Numerical 6 (Pipe network problem) 19 Minutes

13. Numerical 7 (Pipe network problem) 32 Minutes

14. Numerical 8 (Pipe network problem, 2071 Bhadra) 14 Minutes

15 Numerical 9 (Pipe network problem, 2072 Magh) 25 Minutes

1. Introduction_1 6 Minutes

2. Equation of motion (unsteady flow) 15 Minutes

3. Analysis of Euler's equation 14 Minutes

4. Numerical 1 (Analysis of Euler's equation) 15 Minutes

5. Numerical 2 (Analysis of Euler's equation) 18 Minutes

6. Numerical 3 (Analysis of Euler's equation) 10 Minutes

7. Numerical 4 (Analysis of Euler's equation) 8 Minutes

8. Continuity equation (unsteady flow) 11 Minutes

9. Water hammer and its effects 13 Minutes

10. Evolution of hydraulic transient waves 13 Minutes

11. Time history of water hammer pressure wave 10 Minutes

12. Pressure rise due to gradual closure of valve 7 Minutes

13. Pressure rise due to sudden closure of valve (rigid pipes) 6 Minutes

14. Pressure rise due to sudden closure of valve (elastic pipes) 11 Minutes

15. Numerical 5 (Pressure rise due to evolution of hydraulic transient waves) 8 Minutes

16. Numerical 6 (Pressure rise due to evolution of transient waves) 9 Minutes

17. Numerical 7 (Pressure rise due to evolution of transient waves) 25 Minutes

18. Numerical 8 (Time history of water hammer pressure wave) 21 Minutes

19. Relief devices against action of water hammer (surge tank) 8 Minutes

1. Introduction 11 Minutes

2. Types of Open Channel 8 Minutes

3. Geometric properties of channel section 8 Minutes

4. Classification of open channel flow 9 Minutes

5. Exam questions 5 Minutes

1. Condition for uniform flow 6 Minutes

2. Expression for shear stress acting on the channel boundary 7 Minutes

3. Uniform flow formula 5 Minutes

4. Factors affecting Manning's n 7 Minutes

5. Velocity Distribution 12 Minutes

6. Some terms in uniform flow computation 13 Minutes

7. Solution of uniform flow problems 6 Minutes

8. Numerical 1 (Uniform flow) 16 Minutes

9. Numerical 2 (Uniform flow) 4 Minutes

10. Numerical 3 (Uniform flow) 8 Minutes

11. Most efficient channel section condition 3 Minutes

12. Most efficient rectangular channel 5 Minutes

13. Numerical 4 (most economic rectangular channel) 9 Minutes

14. Most efficient triangular channel 7 Minutes

15. Numerical 5 (most economic triangular channel) 5 Minutes

16. Most efficient trapezoidal channel 16 Minutes

17. Numerical 6 (most economic trapezoidal channel) 8 Minutes

18. Numerical 6 (most efficient trapezoidal section) 8 Minutes

19. Numerical 7 (Trapezoidal section, 2073 Bhadra) 8 Minutes

20. Most efficient circular channel (condition for maximum velocity) 15 Minutes

21. Most efficient circular channel section (condition for maximum discharge) 12 Minutes

22. Numerical 8 (most economic circular channel section) 8 Minutes

23. Numerical 7 (Circular channel section, 2074 Bhadra) 10 Minutes

1. Specific energy 9 Minutes

2. Specific energy curve, condition for critical flow 13 Minutes

3. Specific energy, critical depth for rectangular channel 7 Minutes

4. Numerical 1 (rectangular channel) 10 Minutes

5. Numerical 2 (rectangular channel) 5 Minutes

6. Numerical 3 (rectangular channel) 8 Minutes

7. Numerical 4 (rectangular channel, 2068 Magh) 4 Minutes

8. Specific energy, critical depth for triangular channel 6 Minutes

9. Numerical 5 (triangular channel) 7 Minutes

10. Specific energy, critical depth for trapezoidal channel 6 Minutes

11. Numerical 6 (Trapezoidal channel) 12 Minutes

12. Numerical 7 (Trapezoidal channel) 9 Minutes

13. Discharge-depth curve for a given specific energy 7 Minutes

14. Maximum discharge for a rectangular channel section 6 Minutes

15. Critical flow and its computation 9 Minutes

16. Section factor and Hydraulic exponent during critical flow computation 6 Minutes

17. Occurence of critical depth 10 Minutes

18. Numerical 8 (Critical flow computation) 29 Minutes

19. Application of energy principle and critical depth concept 14 Minutes

20. Numerical 9 (Provision of hump) 14 Minutes

21. Numerical 10 (Provision of hump) 9 Minutes

22. Numerical 11 (2076 Baisakh) 15 Minutes

23. Numerical 12(Channel with contraction of width) 17 Minutes

24. Numerical 12 (channel transition, both in cross section and bed slope) 12 Minutes

25. Numerical 13 (channel transition, 2074 Bhadra) 9 Minutes

26. Momentum principle in open channel flow 8 Minutes

27. Specific force, Specific force curve and condition for critical flow 12 Minutes

28. Conjugate depths and relation between them, related question 8 Minutes

29. Question based on relation between conjugate depth(2076 Baisakh) 6 Minutes

1. Introduction 8 Minutes

2. Differential equation for the GVF 10 Minutes

3. Modified forms of GVF equations 10 Minutes

4. Classification of flow surface profiles 14 Minutes

5. Characteristics and analysis of flow profiles 9 Minutes

6. Mild slope profile (M1, M2 and M3) 15 Minutes

7. Profiles in steep slope (S1, S2 and S3) 18 Minutes

8. Profiles in critical slope (C1 and C3) 9 Minutes

9. Profiles in horizontal and adverse slopes (H2, H3, A2 and A3) 8 Minutes

10. Analysis of flow profile (break in grades) 17 Minutes

11. Numerical (Analysis of flow in GVF) 16 Minutes

12. Direct step method 11 Minutes

13. Numerical (Direct step method) 26 Minutes

14. Numerical (Direct step method) 18 Minutes

15. Standard step method 12 Minutes

16. Numerical (Standard step method) 16 Minutes

17. Graphical integration method 6 Minutes

18. Direct integration method 13 Minutes

19. Numerical (Direct integration method) 19 Minutes

20. Bresse's method 7 Minutes

21. Numerical (Bresse's method) 15 Minutes

1. Introduction 7 Minutes

2. Hydraulic jump phenomenon 5 Minutes

3. Relationship between sequent depths 14 Minutes

4. Energy loss in hydraulic jump 8 Minutes

5. Length, height and efficiency of jump 3 Minutes

6. Classification of the hydraulic jump 13 Minutes

7. Relation between Fr1 and Fr2 5 Minutes

8. Numerical 1 15 Minutes

9. Numerical 2 11 Minutes

10. Numerical 3 (2073 Bhadra) 7 Minutes

11. Numerical 4 12 Minutes

12. Numerical 5 12 Minutes

1. Introduction to rigid and mobile boundary channel 5 Minutes

2. Design principle of rigid boundary channel (minimum permissible velocity approach) 6 Minutes

3. Example (Minimum permissible velocity approach) 6 Minutes

4. Definition of alluvial channel, shear stress distribution on channel boundary, incipient motion condition 7 Minutes

5. Design of mobile boundary channel (maximum permissible velocity approach) 8 Minutes

6. Numerical example (Maximum permissible velocity method) 6 Minutes

7. Tractive force method (distribution of tractive force) 9 Minutes

8 Tractive force ratio 12 Minutes

9. Shield's tractive force theory 14 Minutes

10. Numerical (Shield's tractive force theory) 6 Minutes

11. Design steps of channel by tractive force method 3 Minutes

12. Numerical (Tractive force method) 13 Minutes

13. Design with regime approach (Kennedy's silt theory and Lindley's regime theory) 8 Minutes

14. Lacey's regime theory (design steps) 6 Minutes

15. Numerical (Lacey's regime approach) 6 Minutes

16. Numerical (2068 Bhadra, similar question in 2076 baisakh) 10 Minutes

17. Numerical (2068 magh, 2071 magh) 6 Minutes

18. Formation of river beds based on shear stress 10 Minutes

1. Chapter 7 (determination of upstream and downstream depth when there is hump in the downstream) 28 Minutes

2. Chapter 8 (calculation of normal depth and critical depth in wide rectangular channel) 11 Minutes

3. Chapter 8 (determination of normal depth in trapezoidal channel) 23 Minutes

4. Chapter 9 (calculation of sequent depths and energy loss during hydraulic jump) 11 Minutes

2075 Bhadra

• 1. Q. No. 1.a 7 Minutes
• 2. Q. No. 1.b 9 Minutes
• 3. Q. No. 2.a 6 Minutes
• 4. Q. No.2.b 28 Minutes
• 5. Q. No. 3.a 15 Minutes
• 6. Q. No. 3.b 7 Minutes
• 7. Q. No. 4.a 12 Minutes
• 8. Q. No.4.b 4 Minutes
• 9.1 Q. No. 4.c 10 Minutes
• 10. Q. No. 5.a 6 Minutes
• 11. Q. No. 5.b 8 Minutes

2076 Baisakh

• 1. Q. No. 1.a 17 Minutes
• 2. Q. No. 1.b 13 Minutes
• 3. Q. No. 2.a 14 Minutes
• 4. Q. No. 2.b 10 Minutes
• 5. Q. No. 3.a 8 Minutes
• 6. Q. No. 3.b 5 Minutes
• 7. Q. No. 3.c 17 Minutes
• 8. Q. No. 4.a 9 Minutes
• 9. Q. No. 4.b 13 Minutes
• 10. Q. No. 5.a 10 Minutes
• 11. Q. No. 5.b 14 Minutes

2076 Bhadra

• 1. Q. No. 1.a 15 Minutes
• 2. Q. No. 1.b 9 Minutes
• 3. Q. No. 1.c 9 Minutes
• 4. Q. No. 2.a 28 Minutes
• 5. Q. No. 2.b 10 Minutes
• 6. Q. No. 3.a 5 Minutes
• 7. Q. No. 3.b 5 Minutes
• 8. Q. No. 3.c 8 Minutes
• 9. Q. No. 4.a 5 Minutes
• 10. Q. No. 4.b 9 Minutes
• 11. Q. No. 4.c 3 Minutes
• 12. Q, No. 5.a 14 Minutes
• 13. Q. No. 5.b 9 Minutes

2077 Poush

• 1. Q. No. 1.a 24 Minutes
• 2. Q. No. 1.b 11 Minutes
• 3. Q. No. 2.a 14 Minutes
• 4. Q. No. 2.b 7 Minutes
• 5. Q. No. 3.a 12 Minutes
• 6. Q. No. 3.b 3 Minutes
• 7. Q. No. 3.c 11 Minutes
• 8. Q. No. 4.a 13 Minutes
• 9. Q. No. 4.b 12 Minutes
• 10. Q. No. 5.a 13 Minutes
• 11. Q. No. 5.b 10 Minutes

2078 Baisakh

• 1. Q. No. 1.a 14 Minutes
• 2. Q. No. 1.b 6 Minutes
• 3. Q. No. 2.a 13 Minutes
• 4. Q. No. 2.b 13 Minutes
• 5. Q. No. 3.a 2 Minutes
• 6. Q. No. 3.b 14 Minutes
• 7. Q. No. 3.c 7 Minutes
• 8. Q. No. 4.a 10 Minutes
• 9. Q. No. 4.b 22 Minutes
• 10. Q. No. 5.a 24 Minutes
• 11. Q. No. 5.b 16 Minutes