Hydraulics

1. Pipe flow (differences between pipe flow and open channel flow) 00:13:16 _Free

2. Reynold's experiment and flow based on Reynold's number 00:08:48 _Free

3. Laminar flow in circular pipe (expression for shear stress) 00:14:48

4. Laminar flow in circular pipe (velocity distribution) 00:08:56

5. Relation between average velocity and maximum velocity 00:09:11

6. Laminar flow in circular pipe (head loss) 00:07:35

7. Numerical 1 (laminar flow) 00:24:04

8. Numerical 2 (laminar flow) 00:19:41

9. K.E. and momentum correction factors 00:07:27

10. Calculation of K.E. and momentum correction factors for laminar flow 00:10:36

11. Turbulent flow (basic features) 00:09:32

12. Shear stress development in turbulent flow 00:05:44

13. Boussinesq theory of turbulence 00:04:38

14. Reynold's principle of turbulence 00:05:37

15. Prandtl's mixing length theory 00:08:37

16. Velocity distribution for turbulent flow (Prandtl's universal velocity distribution, applicable for both smooth and rough pipe) 00:12:53

17. Analysis of velocity distribution in turbulent flow 00:08:27

18. Hydrodynamically smooth and rough pipe 00:07:18

19. Velocity distribution equation for turbulent flow in smooth pipe 00:13:09

20. Velocity distribution equation for turbulent flow inrough pipe 00:04:47

21. Velocity distribution equation in terms of mean velocity 00:09:13

22. Relation between velocity at any point and average velocity, location of average velocity 00:08:51

23. Darcy-Weisbach equation 00:17:15

24. Resistance to flow of fluid in smooth and rough pipes 00:24:15

25. Numerical 1 (Turbulent flow) 00:16:05

26. Numerical 2 (Turbulent flow) 00:10:06

27. Numerical 3 (Turbulent flow) 00:10:33

28. Numerical 4 (Turbulent flow, concept of hydraulic radius) 00:15:30

29. Numerical 5 (Turbulent flow) 00:13:55

30. Energy losses in pipe 00:05:56

31. Loss of head due to sudden enlargement of pipe 00:08:24

32. Head loss due to sudden contraction of pipe 00:07:37

33. Other types of minor losses 00:05:29

34. HGL and TEL 00:09:58

35. Numerical (minor losses) 00:11:55

36. Numerical (HGL and TEL) 00:25:15

1. Three categories of pipe flow problems 00:07:07

2. Category 1 (procedure to solve) 00:03:32

3. Numerical (Category 1) 00:06:40

4. Category 2 (procedure for solving) 00:05:09

5. Numerical 2 (Category 2) 00:11:07

6. Numerical 4 (Category 2) 00:08:01

7. Category 3 (procedure for solving) 00:04:27

8. Numerical 4 (Category 3) 00:10:27

9. Numerical 5 (Category 3) 00:09:28

10. Pipes in series and parallel, Concept of equivalent pipe, Dupuit's equation 00:14:52

11. Numerical 6 (Pipes in series and parallel) 00:07:58

12. Numerical 7 (Pipes in series and parallel) 00:10:37

13. Numerical 8 (Pipes in series and parallel) 00:10:16

14. Numerical 9 (Pipes in series and parallel, 2075 Baiisakh) 00:13:10

15. Siphon and its application (intro) 00:08:01

16. Characteristic parameters of siphon 00:15:54

17. Numerical 10 (siphon) 00:08:03

18. Numerical 11 (siphon) 00:08:01

1. Introduction 00:12:23

2. Procedure for solving Type 1- Problem (3 reservoir problem) 00:08:10

3. Numerical (Type 1) 00:10:59

4. Procedure for solving Type 2-Problem (3 reservoir problem) 00:08:51

5. Numerical 2 (Type 2) 00:16:40

6. Procedure for solving Type 3-Problem (3 reservoir problem) 00:11:29

7. Numerical 3 (Type 3) 00:27:29

8. Numerical 4 (3 reservoir problem. 2073 Magh) 00:15:50

9. Numerical 5 (3 reservoir problem, 2073 Bhadra, 2076 Baisakh) 00:16:59

10. Introduction to pipe network problem 00:09:47

11. Hardy Cross Method 00:13:12

12. Numerical 6 (Pipe network problem) 00:19:57

13. Numerical 7 (Pipe network problem) 00:32:42

14. Numerical 8 (Pipe network problem, 2071 Bhadra) 00:14:30

15 Numerical 9 (Pipe network problem, 2072 Magh) 00:25:04

1. Introduction_1 00:06:18

2. Equation of motion (unsteady flow) 00:15:39

3. Analysis of Euler's equation 00:14:54

4. Numerical 1 (Analysis of Euler's equation) 00:15:53

5. Numerical 2 (Analysis of Euler's equation) 00:18:17

6. Numerical 3 (Analysis of Euler's equation) 00:10:10

7. Numerical 4 (Analysis of Euler's equation) 00:08:18

8. Continuity equation (unsteady flow) 00:11:22

9. Water hammer and its effects 00:13:17

10. Evolution of hydraulic transient waves 00:13:26

11. Time history of water hammer pressure wave 00:10:08

12. Pressure rise due to gradual closure of valve 00:07:10

13. Pressure rise due to sudden closure of valve (rigid pipes) 00:06:04

14. Pressure rise due to sudden closure of valve (elastic pipes) 00:11:35

15. Numerical 5 (Pressure rise due to evolution of hydraulic transient waves) 00:08:04

16. Numerical 6 (Pressure rise due to evolution of transient waves) 00:09:14

17. Numerical 7 (Pressure rise due to evolution of transient waves) 00:25:32

18. Numerical 8 (Time history of water hammer pressure wave) 00:21:37

19. Relief devices against action of water hammer (surge tank) 00:08:39

1. Introduction 00:11:13

2. Types of Open Channel 00:08:22

3. Geometric properties of channel section 00:08:08

4. Classification of open channel flow 00:09:41

5. Exam questions 00:05:25

1. Condition for uniform flow 00:06:50

2. Expression for shear stress acting on the channel boundary 00:07:14

3. Uniform flow formula 00:05:26

4. Factors affecting Manning's n 00:07:34

5. Velocity Distribution 00:12:00

6. Some terms in uniform flow computation 00:13:04

7. Solution of uniform flow problems 00:06:53

8. Numerical 1 (Uniform flow) 00:16:14

9. Numerical 2 (Uniform flow) 00:04:41

10. Numerical 3 (Uniform flow) 00:08:36

11. Most efficient channel section condition 00:03:57

12. Most efficient rectangular channel 00:05:11

13. Numerical 4 (most economic rectangular channel) 00:09:39

14. Most efficient triangular channel 00:07:05

15. Numerical 5 (most economic triangular channel) 00:05:55

16. Most efficient trapezoidal channel 00:16:06

17. Numerical 6 (most economic trapezoidal channel) 00:08:44

18. Numerical 6 (most efficient trapezoidal section) 00:08:43

19. Numerical 7 (Trapezoidal section, 2073 Bhadra) 00:08:38

20. Most efficient circular channel (condition for maximum velocity) 00:15:10

21. Most efficient circular channel section (condition for maximum discharge) 00:12:30

22. Numerical 8 (most economic circular channel section) 00:08:43

23. Numerical 7 (Circular channel section, 2074 Bhadra) 00:10:18

1. Specific energy 00:09:15

2. Specific energy curve, condition for critical flow 00:13:46

3. Specific energy, critical depth for rectangular channel 00:07:04

4. Numerical 1 (rectangular channel) 00:10:36

5. Numerical 2 (rectangular channel) 00:05:11

6. Numerical 3 (rectangular channel) 00:08:53

7. Numerical 4 (rectangular channel, 2068 Magh) 00:04:39

8. Specific energy, critical depth for triangular channel 00:06:20

9. Numerical 5 (triangular channel) 00:07:25

10. Specific energy, critical depth for trapezoidal channel 00:06:54

11. Numerical 6 (Trapezoidal channel) 00:12:02

12. Numerical 7 (Trapezoidal channel) 00:09:10

13. Discharge-depth curve for a given specific energy 00:07:35

14. Maximum discharge for a rectangular channel section 00:06:33

15. Critical flow and its computation 00:09:14

16. Section factor and Hydraulic exponent during critical flow computation 00:06:50

17. Occurence of critical depth 00:10:15

18. Numerical 8 (Critical flow computation) 00:29:16

19. Application of energy principle and critical depth concept 00:14:40

20. Numerical 9 (Provision of hump) 00:14:27

21. Numerical 10 (Provision of hump) 00:09:43

22. Numerical 11 (2076 Baisakh) 00:15:00

23. Numerical 12(Channel with contraction of width) 00:17:22

24. Numerical 12 (channel transition, both in cross section and bed slope) 00:12:37

25. Numerical 13 (channel transition, 2074 Bhadra) 00:09:04

26. Momentum principle in open channel flow 00:08:27

27. Specific force, Specific force curve and condition for critical flow 00:12:35

28. Conjugate depths and relation between them, related question 00:08:34

29. Question based on relation between conjugate depth(2076 Baisakh) 00:06:25

1. Introduction 00:08:35

2. Differential equation for the GVF 00:10:47

3. Modified forms of GVF equations 00:10:57

4. Classification of flow surface profiles 00:14:02

5. Characteristics and analysis of flow profiles 00:09:58

6. Mild slope profile (M1, M2 and M3) 00:15:35

7. Profiles in steep slope (S1, S2 and S3) 00:18:32

8. Profiles in critical slope (C1 and C3) 00:09:21

9. Profiles in horizontal and adverse slopes (H2, H3, A2 and A3) 00:08:07

10. Analysis of flow profile (break in grades) 00:17:27

11. Numerical (Analysis of flow in GVF) 00:16:40

12. Direct step method 00:11:49

13. Numerical (Direct step method) 00:26:23

14. Numerical (Direct step method) 00:18:02

15. Standard step method 00:12:01

16. Numerical (Standard step method) 00:16:34

17. Graphical integration method 00:06:22

18. Direct integration method 00:13:30

19. Numerical (Direct integration method) 00:19:40

20. Bresse's method 00:07:58

21. Numerical (Bresse's method) 00:15:27

1. Introduction 00:07:37

2. Hydraulic jump phenomenon 00:05:33

3. Relationship between sequent depths 00:14:06

4. Energy loss in hydraulic jump 00:08:38

5. Length, height and efficiency of jump 00:03:43

6. XClassification of the hydraulic jump 00:08:38

7. Relation between Fr1 and Fr2 00:05:50

8. Numerical 1 00:15:54

9. Numerical 2 00:11:26

10. Numerical 3 (2073 Bhadra) 00:07:51

11. Numerical 4 00:12:35

12. Numerical 5 00:12:33

1. Introduction to rigid and mobile boundary channel 00:05:42

2. Design principle of rigid boundary channel (minimum permissible velocity approach) 00:06:30

3. Example (Minimum permissible velocity approach) 00:06:49

4. Definition of alluvial channel, shear stress distribution on channel boundary, incipient motion condition 00:07:45

5. Design of mobile boundary channel (maximum permissible velocity approach) 00:08:28

6. Numerical example (Maximum permissible velocity method) 00:06:55

7. Tractive force method (distribution of tractive force) 00:09:57

8 Tractive force ratio 00:12:56

9. Shield's tractive force theory 00:14:16

10. Numerical (Shield's tractive force theory) 00:06:05

11. Design steps of channel by tractive force method 00:03:38

12. Numerical (Tractive force method) 00:13:00

13. Design with regime approach (Kennedy's silt theory and Lindley's regime theory) 00:08:14

14. Lacey's regime theory (design steps) 00:06:32

15. Numerical (Lacey's regime approach) 00:06:46

16. Numerical (2068 Bhadra, similar question in 2076 baisakh) 00:10:55

17. Numerical (2068 magh, 2071 magh) 00:06:23

18. Formation of river beds based on shear stress 00:10:41

1. Chapter 7 (determination of upstream and downstream depth when there is hump in the downstream) 00:28:44

2. Chapter 8 (calculation of normal depth and critical depth in wide rectangular channel) 00:11:46

3. Chapter 8 (determination of normal depth in trapezoidal channel) 00:23:11

4. Chapter 9 (calculation of sequent depths and energy loss during hydraulic jump) 00:11:49

2075 Bhadra

• 1. Q. No. 1.a 00:07:14
• 2. Q. No. 1.b 00:09:53
• 3. Q. No. 2.a 00:06:44
• 4. Q. No.2.b 00:28:52
• 5. Q. No. 3.a 00:15:47
• 6. Q. No. 3.b 00:07:55
• 7. Q. No. 4.a 00:12:44
• 8. Q. No.4.b 00:04:12
• 9.1 Q. No. 4.c 00:10:13
• 10. Q. No. 5.a 00:06:47
• 11. Q. No. 5.b 00:08:48

2076 Baisakh

• 1. Q. No. 1.a 00:17:10
• 2. Q. No. 1.b 00:13:49
• 3. Q. No. 2.a 00:14:03
• 4. Q. No. 2.b 00:10:32
• 5. Q. No. 3.a 00:08:15
• 6. Q. No. 3.b 00:05:12
• 7. Q. No. 3.c 00:17:59
• 8. Q. No. 4.a 00:09:51
• 9. Q. No. 4.b 00:13:42
• 10. Q. No. 5.a 00:10:56
• 11. Q. No. 5.b 00:14:26

2077 Poush

• 1. Q. No. 1.a 00:24:11
• 2. Q. No. 1.b 00:11:28
• 3. Q. No. 2.a 00:14:51
• 4. Q. No. 2.b 00:07:57
• 5. Q. No. 3.a 00:12:03
• 6. Q. No. 3.b 00:03:50
• 7. Q. No. 3.c 00:11:07
• 8. Q. No. 4.b 00:13:48
• 9. Q. No. 4.b 00:12:54
• 10. Q. No. 5.a 00:13:50
• 11. Q. No. 5.b 00:10:17

2078 Baisakh

• 1. Q. No. 1.a_1 00:14:55
• 2. Q. No. 1.b_1 00:06:03
• 3. Q. No. 2.a_1 00:13:09
• 4. Q. No. 2.b_1 00:13:05
• 5. Q. No. 3.a_1 00:02:53
• 6. Q. No. 3.b_1 00:14:51
• 7. Q. No. 3.c_1 00:07:54