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# Download Water is flowing into and discharging from a pipe Usection as shown

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Transcript

Water is flowing into and discharging from a pipe Usection as shown in Fig. P6–58. At flange (1), the total absolute pressure is 200 kPa, and 30 kg/s flows into the pipe. At flange (2), the total pressure is 150 kPa. At location (3), 8 kg/s of water discharges to the atmosphere, which is at 100 kPa. Determine the total x- and z-forces at the two flanges connecting the pipe. Consider steady, incompressible, parallel, laminar flow of a film of oil falling slowly down an infinite moving vertical wall with constant velocity U (as shown in Figure below). Such films have been studied in connection with wetted-wall towers, evaporation and gas absorption experiments. There is no applied pressure other than hydrostatic pressure due to gravity. Use the equations of motion in rectangular coordinates to derive expressions for: a) The velocity profile b) The pressure drop between the inlet and the exit points c) The total volumetric flow rate Q d) The shear force acting on the bottom plate e) The film thickness. Moving Plate with velocity U