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Unformatted text preview: and the phenomenon is complicated. To simplify the analysis, a head loss and the associated loss coefficient are used in the extended Bernoulli’s equation to take into consideration of this effect as described in the next page. 2 1 2 2 2 , so that / 2 1 2 L L L h p K p K V V g V ρ ∆ = = ∆ = 1 2.51 2.0log , valid for nonlaminar range 3.7 Re f f D ε = + Minor Loss through flow entrance V 2 V 3 V 1 (1/2) ρ V 2 2 (1/2) ρ V 3 2 K L (1/2) ρ V 3 2 p → p ∞ 2 2 2 3 3 3 1 1 1 3 1 3 1 3 1 3 Extended Bernoulli's Equation: , 2 2 2 2 1 , 0, ( 2 ( ) 1 1 L L L L L p V V p V z h z h K g g g p p p V V g z z gh K K γ ∞ + += + + = = = ≈ == + + 2 2 V p gz ρ + +...
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 Fall '08
 staff
 Mechanical Engineering, Fluid Dynamics, Pipe Flows, minor losses

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