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A one-twelfth-scale model of a large commercial aircraft is tested in a wind tunnel at 20°C and 1 atm. The model chord length is 27 cm, and its wing area is 0.63 m2. Test results for the drag of the model are as follows:
In the spirit of Fig. 5.8, use this data to estimate the drag of the full-scale aircraft when flying at 550 mi/h, for the same angle of attack, at 32,800 ft standard altitude.
a flow is described by velocity field where a 0.2 s-1 and b 0.4 ms2. at t 2 s what are the coordinates of particles
the inlet to a nitrogen compressor is a pipe of 5cm internal diameter its outlet is a pipe of 2 cm internal diameter.
A Carnot heat engine operates between two reservoirs at temperatures of 400 K and 500 K,. What is the ratio of the work output to the heat rejection?
a vapor-compression refrigeration cycle employed in a heat pump uses refrigerant r-134a and provides 15 kw of heating.
In the textbook Sodium and Chlorine are listed as having ionic radii of 0.98 and 1.81 Å respectively. NaCl can form a face-cantered cubic unit cell. What is the lattice constant of such a unit cell?
A feed that is 50 mol% methane, 10 mol% n-butane, 15 mol% n-pentane, and 25 mol% n-hexane is flash distilled. F=150 kmol/h. Drum pressure =250 kPa, drum temperature =10 degrees celcius. use the depriester charts. find V/F, xi, yi, V, L.
derive an equation to calculate the maximum deflection point on a beam held up by pins represented by reaction forces
The diffuser in a jet engine is designed to decrease the kinetic energy of the air entering the engine compressor without any work or heat interactions. Calculate the velocity at the exit of a diffuser when air at 100kPa and 14C enters it with a velo..
water vapor enters a turbine at 6 mpa and 400degc and leaves the turbine at 100 kpa with the same specific entropy as
The objective of this project is to design a speed reducing (torque increasing) gearbox for an industrial saw that will be used to cut formed steel tubing. Your design team is required to specify the associated shafts, rolling element bearings, ke..
1 kg of a gas in a piston-cylinder assembly undergoes a Carnot power cycle for which the isothermal expansion occurs at 800 K. The change in specific entropy of the gas during the isothermal compression, which occurs at 400 K is -25 kJ/kg. K.
An old 3000-lb gun fires an 18-lb shell with an initial velocity of V0=1500ft/s at an angle of 30 degrees. The gun rest on a horizontal surface and is free to move horizontally. Assuming that the varrel of the gun is rigidly attached to the frame and..
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