intro - Laminar Flow Viscometer Nomenclature A d f g h...

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Laminar Flow Viscometer Nomenclature A cross-sectional flow area d inside diameter of a pipe or “device” f Darcy friction factor: for laminar flow, f = 64/Re d g gravitational constant (9.81 m/s 2 ) h head, i.e. elevation of a fluid column h major major head loss (height of water column) due to friction in a pipe h minor minor head loss (height of water column) due to a “device” in the pipe system h L , total total irreversible head loss, including major and minor losses: , total major minor L hhh ∆= + ∑∑ K nondimensional minor loss coefficient L length of a pipe or capillary tube L e entrance length required to establish fully developed flow in a pipe or capillary tube & m mass flow rate through the pipe P static pressure Re d Reynolds number based on diameter d : Re d = ρ VD / µ = Vd/ ν t time T temperature V mean velocity in a pipe V volume V & (or Q ) volume flow rate pump W & work done to the control volume by a pump turbine W & work done by the control volume on a turbine viscous W & viscous work done on
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intro - Laminar Flow Viscometer Nomenclature A d f g h...

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