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PSLSAMP

PSLSAMP. Promote participation in STEM UGA 10/4 Benjamin Hamler. Toolbox. Reynolds Number Relative roughness Darcy Equation HP Equation Moody Chart. Surface roughness table Material ε mm Riveted Steel 0.90-9.0 Concrete 0.30-3.0 Wood stave 0.18-0.90 Cast iron 0.26

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PSLSAMP

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  1. PSLSAMP • Promote participation in STEM • UGA 10/4 • Benjamin Hamler

  2. Toolbox • Reynolds Number • Relative roughness • Darcy Equation • HP Equation • Moody Chart

  3. Surface roughness table Material ε mm Riveted Steel 0.90-9.0 Concrete 0.30-3.0 Wood stave 0.18-0.90 Cast iron 0.26 Galvanized iron 0.15 Commercial steel 0.045 Drawn tubing 0.0015 Plastic, glass 0.0

  4. More Toolbox • Explicit equation • Hazen- Williams • Hydraulic radius • HW Coefficient

  5. Friction • Pipe – Darcy Equation • Minor losses • Fittings • Valves • Special purpose components

  6. Minor Losses • Head loss: streamline separation • Loss coefficient

  7. Minor Losses • Inlet/exit • Expansion/ contraction • Bends/elbows • Valves • Globe • Needle • Gate • Ball • Check • Butterfly • Diaphram

  8. Loss Coefficient • hL = K V2/2g

  9. K =(1 −A1/A2)2 The loss coefficient goes to zero as A2  A1 . The loss coefficient goes to one as A2   .

  10. Minor Losses • Equivalent length • LE/D • fT

  11. GEE Problem • Handout

  12. References • Images & examples • Mechanics of Fluids, 3rd Edition, Potter & Wiggert, Brooks & Cole • Applied Fluid Mechanics, 6th Edition, Mott, Prentice Hall • Engineering Fluid Mechanics, 5th Edition Crowe, & Roberson, Wiley • Fluid Mechanics Cengel & Cimbala McGraw Hill

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