Sediment transport in irrigation canals : a new approach /: a new approach. (2014)

• Record Type: Book
• Further Information: Note: Herman Depeweg, Krishna P. Paudel, Néstor Méndez V.
• Authors: Depeweg, Herman; Paudel, Krishna P; Méndez V., Néstor J, 1954-
• Contents: LIST OF FIGURES; LIST OF TABLES; PREFACE 1 INTRODUCTION 2 OPEN CHANNEL FLOW; 2.1 Introduction; 2.2 Flow types and characteristics; 2.3 Geometry; 2.4 Basic hydraulic principles; 2.5 Velocity distribution; 2.6 Uniform flow; 2.7 Non-uniform steady flow; 2.8 Some general aspects of unsteady flow; 2.9 Basic differential equations for gradually varied unsteady flow; 2.10 Solution of the de St. Venant equations; 2.11 Rectangular channels and the method of characteristics 3 SEDIMENT PROPERTIES; 3.1 Introduction; 3.2 Density and porosity; 3.3 Size and size distribution; 3.4 Shape; 3.5 Fall velocity; 3.6 Characteristic dimensionless parameters 4 DESIGN CRITERIA FOR IRRIGATION CANALS; 4.1 Introduction; 4.2 Flow control systems; 4.2.1 Upstream control; 4.2.2 Downstream control; 4.3 The role of sediment transport in the design of irrigation canals; 4.3.1 Regime method; 4.3.2 Tractive force method; 4.3.3 Permissible velocity method; 4.3.4 Rational method; 4.3.5 Final comments; 4.4 Appurtenant canal structures; 4.4.1 Irrigation structures; 4.4.2 Main hydraulic principles for irrigation structures; 4.4.3 Hydraulics for some irrigation structures; 4.4.4 General remarks 5 SEDIMENT TRANSPORT CONCEPTS; 5.1 Introduction; 5.2 Friction factor predictors; 5.2.1 Introduction; 5.2.2 Bed form development; 5.2.3 Effects of grains and bed forms on the roughness of the bed; 5.2.4 Roughness of the side slopes; 5.2.5 Equivalent roughness for non-wide irrigation canals; 5.2.6 Comparison of the equivalent roughness predictors in trapezoidal canals; 5.2.7 Prediction of composite roughness in a rectangular canal; 5.2.8 Effect of bed forms on the flow resistance; 5.2.9 Determination of the friction factor; 5.3 Governing equations for sediment transport; 5.3.1 Introduction; 5.3.2 Initiation of sediment movement; 5.3.3 Sediment transport in non-wide canals; 5.3.4 Effects of the canal geometry and flow characteristics on the sediment transport; 5.3.5 Velocity distribution in a trapezoidal canal; 5.3.6 Exponent of the velocity in the sediment transport predictors; 5.3.7 Correction factor for the prediction of the total sediment transport; 5.3.8 Predictability of the predictors with the correction factor; 5.3.9 Sediment transport in non-equilibrium conditions; 5.4 Morphological changes of the bottom level; 5.4.1 The modified Lax method; 5.4.2 Sediment movement; 5.5 Conclusions 6 SETRIC, A MATHEMATICAL MODEL FOR SEDIMENT TRANSPORT IN IRRIGATION CANALS; 6.1 Upstream controlled irrigation systems; 6.1.1 Introduction; 6.1.2 Water flow equations; 6.1.3 Sediment transport equations; 6.1.4 General description of the mathematical model; 6.1.5 Input and output data; 6.2 Downstream controlled irrigation systems; 6.2.1 Background; 6.2.2 Downstream control considerations; 6.2.3 Aspects of the downstream control module; 6.2.4 Input and output data; 6.3 Conclusions 7 THE SEDIMENT TRANSPORT MODEL AND ITS APPLICATIONS; 7.1 Introduction; 7.2 Description of the hydraulic and sediment characteristics for the given examples; 7.3 Case 1 Changes in the discharge at the headworks; 7.4 Case 2 Changes in the incoming sediment load; 7.5 Case 3 Controlled sediment deposition; 7.6 Case 4 Flow control structures; 7.7 Case 5 Maintenance activities; 7.8 Case 6 Management activities; 7.9 Case 7 Effect of the design of control structures on the hydraulic behaviour and sediment transport; 7.10 Review REFERENCES SYMBOLS APPENDIX A METHODS TO ESTIMATE THE TOTAL SEDIMENT TRANSPORT CAPACITY IN IRRIGATION CANALS; A.1 Introduction; A.2 Ackers and White method; A.3 Brownlie method; A.4 Engelund and Hansen method; A.5 Van Rijn method; A.6 Yang Method APPENDIX B METHODS TO PREDICT THE FRICTION FACTOR; B.1 Van Rijn; B.2 Brownlie; B.3 White, Paris and Bettess; B.4 Engelund APPENDIX C HYDRAULIC DESIGN OF IRRIGATION CANALS; C.1 Introduction; C.2 Alignment of an irrigation canal; C.3 Water levels; C.4 Earthwork; C.5 Design of irrigation canals; C.6 Boundary shear stresses; C.7 Sediment transport criteria; C.8 Transport of the bed material; C.9 Final remarks; C.10 Computer aided design of canals APPENDIX D DESCRIPTION OF THE MAIN ASPECTS OF THE REGIME THEORY; D Some regime considerations; D.1 Sediments; D.2 Maturing of canals; D.3 Slope adjustments; D.4 Diversion of the sediment; D.5 Maintenance aspects; D.6 Flow capacity; D.7 Design considerations APPENDIX E GLOSSARY RELATED TO SEDIMENT TRANSPORT APPENDIX F FLOW DIAGRAMS SUBJECT INDEX
• Edition: 1st
• Publisher Details: Boca Raton : CRC Press
• Publication Date: 2014
• Extent: 1 online resource
• Subjects: 551.353; Sediment transport -- Mathematical models; Irrigation canals and flumes
• Languages: English
• ISBNs: 9781315747507
• Related ISBNs: 9781138026957
• Notes: Note: Description based on CIP data; item not viewed.
• Access Rights: Legal Deposit; Only available on premises controlled by the deposit library and to one user at any one time; The Legal Deposit Libraries (Non-Print Works) Regulations (UK).
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