Unformatted text preview: Determine: a) Wall shear stress ߬ ௪ b) Pressure difference Δ between sections (1) and (2) using the momentum equation c) Head loss ݄ between section (1) and (2) using the energy equation The distance ܮ between sections (1) and (2) is 10m. ( ߩ = 1,260 Kg/m 3 and ߤ = 1.50 N ⋅ s/m 2 for glycerin at 20 ° C) 4. The water flowrate, ܳ , in an open rectangular channel can be measured by placing a plate across the channel as shown in Fig. 4. This type of a device is called a weir . The height of the water, ܪ , above the weir crest is referred to as the head and can be used to determine the flowrate through the channel. Assume that ܳ is a function of the head, ܪ , the channel width, ܾ , and the acceleration of gravity, ݃ . Determine a suitable set of dimensionless variables for this problem. Figure 3 Figure 4 ܮ ଵ ܣ ଶ ܣ ߬ ௪ ሺ2ߨܴሻܮ...
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 Fall '10
 FredrickStern
 mechanics, Force, Shear Stress, head loss, horizontal 75mmdiameter pipe

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