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Title:

Thermodynamics I

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Open Channel Storm water Irrigation Waste water collection and treatment Types of open channel flows Steady flow when discharge (Q) does not change with time. – PowerPoint PPT presentation

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Title: Thermodynamics I


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Open Channel
  • Storm water
  • Irrigation
  • Waste water collection and treatment

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  • Types of open channel flows
  • Steady flow when discharge (Q) does not change
    with time.
  • Uniform flow when depth of fluid does not
    change for a selected length or section of the
    channel
  • Uniform steady flow when discharge does not
    change with time and depth remains constant for a
    selected section.
  • cross section should remain unchanged referred
    to as a prismatic channel

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Open Channel Flow
  • Hydraulic radius
  • R A/WP
  • Do not include free surface in wetted perimeter.

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Open Channel Flow
  • Re V R/?
  • Laminar flow Re lt 500
  • Turbulent flow Re gt 2000

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Best Hydraulic Section
  • Design criteria

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Manning Equation
  • USCS
  • Q (a/n) A R2/3 So1/2
  • a 1.49
  • SI a 1.0

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Weirs
  • Rectangular
  • V-notch
  • Cipolletti

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Hydraulic Jump
  • Design concern
  • Tidal bore

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