TAMU OCEN 682 - Chapter3_usbr (112 pages)

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Chapter3_usbr



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Chapter3_usbr

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Pages:
112
School:
Texas A&M University
Course:
Ocen 682 - Coastal Sediment Procs
Coastal Sediment Procs Documents

Unformatted text preview:

Chapter 3 Noncohesive Sediment Transport Page 3 1 Introduction 3 1 3 2 Incipient Motion 3 1 3 2 1 Shear Stress Approach 3 2 3 2 2 Velocity Approach 3 7 3 3 Sediment Transport Functions 3 12 3 3 1 Regime Approach 3 12 3 3 2 Regression Approach 3 14 3 3 3 Probabilistic Approach 3 16 3 3 4 Deterministic Approach 3 17 3 3 5 Stream Power Approach 3 23 3 3 5 1 Bagnold s Approach 3 23 3 3 5 2 Engelund and Hansen s Approach 3 25 3 3 5 3 Ackers and White s Approach 3 25 3 3 6 Unit Stream Power Approach 3 28 3 3 7 Power Balance Approach 3 32 3 3 8 Gravitational Power Approach 3 34 3 4 Other Commonly Used Sediment Transport Functions 3 36 3 4 1 Schoklitsch Bedload Formula 3 36 3 4 2 Kalinske BedloadFormula 3 37 3 4 3 Meyer Peter and Miiller Formula 3 39 3 4 4 Rottner Bedload Formula 3 40 3 4 5 Einstein Bedload Formula 3 41 3 4 6 Laursen Bed Material Load Formula 3 41 3 4 7 Colby Bed Material Load Formula 3 42 3 4 8 Einstein Bed Material Load Formula 3 44 3 4 9 Toffaleti Formula 3 44 3 5 Fall Velocity 3 45 3 6 Resistance to Flow 3 47 3 6 1 Einstein s Method 3 49 3 6 2 Engelund and Hansen s Method 3 54 3 58 3 6 3 Yang s Method 3 7 Nonequilibrium Sediment Transport 3 63 3 8 Comparison and Selection of Sediment Transport Formulas 3 63 3 8 1 Direct Comparisons with Measurements 3 64 3 8 2 Comparison by Size Fraction 3 73 3 8 3 Computer Model Simulation Comparison 3 77 3 8 4 Selection of Sediment Transport Formulas 3 83 3 8 4 1 Dimensionless Parameters 3 85 3 8 4 2 Data Analysis 3 86 3 8 4 3 Procedures for Selecting Sediment Transport Formulas 3 102 3 104 3 9 Summary 3 10 References 3 104 Chapter 3 Noncohesive Sediment Transport by Chih Ted Yang 3 1 Introduction Engineers geologists and river morphologists have studied the subject of sediment transport for centuries Different approaches have been used for the development of sediment transport functions or formulas These formulas have been used for solving engineering and environmental problems Results obtained from different



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