Engineering, 02.09.2020 02:01 bryson3307
Consider a series of turning vanes struck by a continuous jet of water that leaves a 50-mm-diameter nozzle at constant speed, V= 86.6 m/s. The vanes move with constant speed, U = 50 m/s. Note that all the mass flow leaving the jet crosses the vanes. The curvature of the vanes is described by angles a = 30' and 02 = 45'. Evaluate the nozzle angle, a, required to ensure that the jet enters tangent to the leading edge of each vane. Calculate the force that must be applied to maintain the vane speed constant.
Answers: 2
Engineering, 04.07.2019 18:10, heidiburgos1own6c0
Fluids at rest possess no flow energy. a)- true b)- false
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Engineering, 04.07.2019 18:20, krojas015
Asolid cylinder is concentric with a straight pipe. the cylinder is 0.5 m long and has an outside diameter of 8 cm. the pipe has an inside diameter of 8.5 cm. the annulus between the cylinder ad the pipe contains stationary oil. the oil has a specific gravity of 0.92 and a kinematic viscosity of 5.57 x 10-4 m2/s. most nearly, what is the force needed to move the cylinder along the pipe at a constant velocity of 1 m/s?
Answers: 3
Engineering, 04.07.2019 19:10, jennymares
Abarometer contains mercury with a density of 13600 kg/m3. atmospheric conditions are 95.8 kpa and 20 °c at 20 °c, the vapor pressure of the mercury is 0.000173 kpa. the column of mercury will rise to a height of most nearly. select one: a)- 0.38 m b)- 0.82 m c)- 0.48 m d)- 0.72 m
Answers: 1
Consider a series of turning vanes struck by a continuous jet of water that leaves a 50-mm-diameter...
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