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Introduction to Fluid Mechanics

Introduction to Fluid Mechanics. Chapter 11 Open-Channel Flow. Main Topics. Steady Uniform Flow Specific Energy, Momentum Equation, and Specific Force Steady, Gradually Varied Flow Rapidly Varied Flow Discharge Measurement. Steady Uniform Flow. Control Volume. Steady Uniform Flow.

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Introduction to Fluid Mechanics

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  1. Introduction to Fluid Mechanics Chapter 11 Open-Channel Flow

  2. Main Topics • Steady Uniform Flow • Specific Energy, Momentum Equation, and Specific Force • Steady, Gradually Varied Flow • Rapidly Varied Flow • Discharge Measurement

  3. Steady Uniform Flow • Control Volume

  4. Steady Uniform Flow • Chezy Equation • Chezy Coefficient

  5. Steady Uniform Flow • Manning Equation (SI) • Manning Equation (US Customary)

  6. Steady Uniform Flow • Manning Roughness Coefficients

  7. Specific Energy, Momentum Equation, and Specific Force • Specific Energy

  8. Specific Energy, Momentum Equation, and Specific Force • Froude Number Criterion • Froude Number Criterion (Rectangular Channel)

  9. Specific Energy, Momentum Equation, and Specific Force • Momentum Equation

  10. Specific Energy, Momentum Equation, and Specific Force • Momentum Equation (Steady State)

  11. Specific Energy, Momentum Equation, and Specific Force • Specific Force

  12. Specific Energy, Momentum Equation, and Specific Force • Critical Flow Examples

  13. Steady, Gradually Varied Flow • Differential Equation

  14. Rapidly Varied Flow • Example: Hydraulic Jump

  15. Rapidly Varied Flow • Hydraulic Jump (Continued)

  16. Discharge MeasurementUsing Weirs • Example (Sharp Crested Weir)

  17. Discharge MeasurementUsing Weirs • Suppressed Rectangular Weir • Contracted Rectangular Weir Effective Length

  18. Discharge MeasurementUsing Weirs • Triangular Weir

  19. Discharge MeasurementUsing Weirs • Broad-Crested Weir

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