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Hydraulics: Water Transport and Pressure Measurement

Explore the major forms of water transport, including gravity flow and pumping, and learn about the properties of water as an incompressible liquid. Discover different instruments used to measure pressure and flow rates in hydraulic systems.

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Hydraulics: Water Transport and Pressure Measurement

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  1. Chapter 2 • Hydraulics: • Major Forms of water transport • Gravity Flow • Pumping • Water Properties • incompressible liquid (constant volume) • Unit wt. = 62.4 pcf or 9.8 KN/m3 • Pressure - U.S. (psi) or SI (N/m2 or Pascal) • P=62.4 pcf=.43 #/in2-ft • Conversion Factors • 1 cu ft. = 7.48 gallons = 28.32 L • 1 gal =3.8 Liters • 1 mgd = 1.55 cfs = 700 gpm

  2. Chapter 2 CHAPTER 2 - HYDRAULICS Hwk #2 pp.53-55 1,4,7,9,11 Overview: Hydrostatic Pressure Pressure Head Continuity of Flow- hydraulic equipment

  3. Chapter 2 Conservation of Energy- closed system (Bernoulli Equation) Hazel-Williams Equation- closed pipes equation

  4. Chapter 2 Manning’s Flow- open channel flow Q=channel discharge capacity, m3/s(ft3/s) 1.0= SI const and 1.5 for US n =manning channel roughness coef A = cross –sectional area R = hydraulic radius of the channel, m(ft) S= slope of the channel bottom, dimensionless

  5. Chapter 2 Hydrostatic Pressure:

  6. Chapter 2 Instruments: (to measure pressure) piezometer tube manometer Bourdon Tube Gage Pressure Transducers Venturi Meter (measures flow rate) Pitot Tube (measures flow velocity) Terminology: Viscosity – The friction that acts between two surfaces due to the fluid Hydraulic Grade Line (HGL)- Fig 2.14

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