| Preface | 第1-7页 |
| Abstract (English) | 第7-9页 |
| Abstract (Chinese) | 第9-10页 |
| Table of Contents | 第10-14页 |
| List of Figures | 第14-18页 |
| List of Tables | 第18-19页 |
| Chapter 1 Introduction | 第19-27页 |
| ·General Overview | 第19-21页 |
| ·Literatures Review | 第21-23页 |
| ·One-Dimensional Models | 第22页 |
| ·Two-Dimensional Models | 第22-23页 |
| ·Thesis Objective | 第23-27页 |
| Chapter 2 One-Dimensional Numerical Model for Degradation and Armoring Process in Alluvial Channels | 第27-39页 |
| ·Introduction | 第27-28页 |
| ·Types and Causes of Degradation | 第28-30页 |
| ·Governing Equations | 第30-31页 |
| ·Armor Layer Development | 第31页 |
| ·Probability of the Particle to Stay on the Bed | 第31-32页 |
| ·Computation of the Median Sediment Diameter | 第32-33页 |
| ·Numerical Scheme | 第33-34页 |
| ·Procedure for the Calculation of Degradation | 第34-36页 |
| ·Initial and Boundary Condition | 第34-35页 |
| ·Application and Comparison with Experimental Results | 第35-36页 |
| ·Conclusion | 第36-39页 |
| Chapter 3 Application of Stream Tube Model GSTARS2.1 to Simulate Degradation Process in Tigris River | 第39-67页 |
| ·Introduction | 第39-41页 |
| ·Review of the GSTARS2.1 Model | 第41-48页 |
| ·Governing Equations for Hydrodynamics | 第41-43页 |
| ·Model Representation | 第43-44页 |
| ·Flow Resistance | 第44-46页 |
| ·Stream Line and Stream tubes | 第46-47页 |
| ·Sediment Routing | 第47-48页 |
| ·Discretization of the Governing Equations of the Model | 第48-49页 |
| ·Sediment Transport Capacity Computation | 第49-51页 |
| ·Bed Sorting and Armoring | 第51-54页 |
| ·Computation of Width Changes | 第54-56页 |
| ·Channel Side Slope Adjustments | 第56-58页 |
| ·Application of the GSTARS 2.1 model for degradation in alluvial channels | 第58-64页 |
| ·Verification of the Model | 第58-60页 |
| ·Application of the Model on a Reach From Tigris River | 第60-64页 |
| ·Comparison between ID Model and GSTARS2.1 Model | 第64-65页 |
| ·Conclusion | 第65-67页 |
| Chapter 4 2D Numerical Model for Channel Flow and Morphological Changes | 第67-151页 |
| ·Introduction | 第67-69页 |
| ·Governing Equations for hydrodynamics | 第69-74页 |
| ·Governing Equations | 第69-70页 |
| ·Eddy Viscosity Models | 第70-72页 |
| ·Two-dimensional k-e model for depth-integrated flow | 第72-73页 |
| ·Shear Stress on the Bed | 第73-74页 |
| ·Finite Element Approach | 第74-81页 |
| ·Introduction | 第74页 |
| ·Interpolation Functions | 第74-77页 |
| ·Finite Element Operators for Calculating Derivatives | 第77-79页 |
| ·Four Node Bilinear Element | 第79页 |
| ·Staggered Mesh for Solving the Continuity Equation | 第79-80页 |
| ·Solution Method | 第80-81页 |
| ·Upwinding Scheme | 第81-84页 |
| ·Boundary and Initial Conditions | 第84-89页 |
| ·Inlet Boundary | 第84-85页 |
| ·Outlet Boundary | 第85-86页 |
| ·Solid Wall boundary | 第86-88页 |
| ·Boundary Condition for k-ε Model | 第88-89页 |
| ·Sediment Transport and Bed Change Simulation | 第89-95页 |
| ·Bed Load Formula | 第89-90页 |
| ·Correction to the critical shear stress | 第90页 |
| ·Bed Load Motion Affected by Transversal Slope | 第90-91页 |
| ·Bed Load Motion Affected by Secondary Flow | 第91-92页 |
| ·Bed Form Change Due to Gravity | 第92页 |
| ·Bed Morphological Change Due to Bed Load Transport | 第92-93页 |
| ·Suspended Sediment Transport Model | 第93-94页 |
| ·Bank Erosion and Channel Migration Model | 第94-95页 |
| ·Flow Chart of the Main Structure of the Model | 第95-97页 |
| ·Part A: Effect of Channel Curvature and Transverse Bed Slope on Flow Characteristics and Bed opography | 第97-131页 |
| ·Introduction | 第97-98页 |
| ·Model Verification and Application | 第98-102页 |
| ·Verification of the model | 第99-100页 |
| ·The Boundary and Initial Condition | 第100-102页 |
| ·Data Analysis | 第102-129页 |
| ·Water Surface Analysis | 第102-112页 |
| ·Variation in velocity distribution | 第112-118页 |
| ·Bed Level Changes | 第118-129页 |
| ·Conclusion | 第129-131页 |
| ·Part B:Application of Depth-Integrated 2-D model CCHE2D to Simulate the Flow Field in Ganjiang River# | 第131-151页 |
| ·Introduction | 第131-132页 |
| ·Description of Study Reach | 第132-135页 |
| ·Input Data and Boundary Conditions | 第135-136页 |
| ·Verification of the model | 第136-142页 |
| ·Application of the Model | 第142-149页 |
| ·Conclusion | 第149-151页 |
| Chapter 5 Summary and Conclusions | 第151-157页 |
| ·Summary | 第151-154页 |
| ·Conclusions | 第154-156页 |
| ·Future Research | 第156-157页 |
| References | 第157-170页 |
| Acknowledgement | 第170-171页 |
| List of Publications | 第171页 |
