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A laminar boundary layer of 20-C atmospheric air moving at 2 m=s exists on one side of a 2-m-wide, 3-m-long ?at plate. At x ¼ 3 m ?nd:
(a) The boundary-layer thickness.
(b) The wall shear stress.
(c) The maximum y-component of velocity.
(d) The drag force.
(e) The displacement and momentum thicknesses.
(f) The ?ow rate through the boundary layer.
determine the heat transfer necessary to increase the pressure of 70 percent quality steam from 200 to 700 kpa
refrigerant 134a is compressed with no heat transfer in a piston- cylinder assembly from 30 lbfin2 20 degrees f to 160
steam at 1.0mpa and 300c with a mass flow rate of 10kgs enters an insulated turbine operating at steady state and exits
Helium gas is contained in a rigid vessel of 0.5 m3 at 500 kPa. The gas is agitated violently by a stirrer that transfers 250 kJ of work to the gas. Assuming that the system undergoes an adiabatic process, determine the final pressure of the gas. Ass..
a thermocouple is located 1 m from the leading edge of a flat plate along which water flows at 1 ms. the distance
Determine a) the volume of the tank,b)the final temperature and pressure, and c) the internal energychange of the water.
Steam at 2.5 MPa and 400 C enters an adiabatic steam turbine with a low velocity and leaves with a velocity of 180 m/s at a pressure of 15 kPa and a quality of 90 percent. Assume steady state for the current problem state. Neglect potential energy.
Design value for the molded friction material and steel disks to be used 0.06 and pressure max=1400kpa. Determine appropriate values for the disk inside dimmeter, the total number of disks and the actuating force?
at steady state. a power cycle generates 100 mw of electricity while discharging energy by heat transfer at a rate of
a piston-cylinder device contains 1 kg of h2o. the water is at 800oc and a pressure of 20 mpa. heat transfer occurs
Consider a hypothetical metal that has a hexagonal close-packed crystal structure and an atomic weight of 70.28 g/mol. If the atomic radius is 0.1473 nm and the c/a ratio is 1.723, then calculate (a) the unit cell volume, and (b) the density of the m..
The question related to Mechanical Engineering and the question is about drawing outlet and inlet valves for a compressor for controlling compressor. The symbols have been drawn with standard ISA symbols
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