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The drag, d, on a washer-shaped plate placed normal to a stream of fluid can be expressed as D = f(d1, d2, V, μ, ρ) where d1 is the outer diameter, d2 the inner diameter, V the fluid velocity, µ the fluid viscosity, and ρ the fluid density. Some experiments are to be performed in a wind tunnel to determine the drag. What dimensionless parameters would you use to organize these data?
Design a single-cylinder atmospheric engine capable of lifting a mass of 1000 kg to a height of three meters. Assume reasonable values of cylinder temperature and pressure after combustion.
a closed system contains 0.2 kg of air is used to execute a power carnot cycle between temperature limits of 315 k and
a power plant has an overall efficiency of 30. the plant generates 20mw of electricity and uses coal with a heating
Determine reactions at the supports. Draw moment diagram. Determine reactions at D if, in addition to the applied load, support D settles 0.02 m.
what is the difference between steady state and non-steady state diffusion processes? use mathematical expressions to
a single crystal of aluminum is oriented for a tensile test such that its slip plane normal makes an angle of 30o with
in an ideal rankine cycle feedwater with an enthalpy of 74 btulbm enters a boiler at a temperature of 106degf and at a
Air with a mass flow rate of 1.5 kg/sec and temperature of 400 K flows through a horizontal duct of an air heater. If 36 kJ/sec of heat is added to the flow, determine the air exit temperature. Assume ideal gas and neglect any change in pressure and ..
steam at 1000 f and 1200 psia enters a turbine. the turbine exhausts into a condenser at 4 psia and is 85 efficientb
Why do you think it is important, when using a stroboscope, to start at a very high frequency and slowly reduce the frequency to the point of synchronisation?
a spring loaded piston cylinder device is initially filled with 0.1 kg of r-134a saturated liquid vapor mixture whose
With the presence of stagnant air in the steam, the condensate surface temperature drops from 28 to 24°C and the condensate rate is reduced by a factor of 2. For the air-steam mixture, determine the partial pressure of air as a function of distanc..
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