Engineering, 11.02.2020 22:54 natie18
Steady-state aircraft engine: In a jet engine, air enters from the fornt, fuel is added farther downstream in the engine, and the fuel and air burn. Thrust is produced when the gases leave the engine through a nozzle at high velocty. Consider a case where a jet engine is being tested on the ground. It is operating at steady-state and burning 0.25 kg/s of jet fuel. The velocity (v) and temperature (T) profiles of the gases exiting the round nozzle have been measured, and are found to depend only on the radial distance (r) from the center of the nozzle – they are not dependent on the azimuthal position around the nozzle.
Answers: 3
Engineering, 03.07.2019 14:10
Explain the difference laminar and turbulent flow. explain it with the shear stress and the velocity profiles.
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Engineering, 03.07.2019 14:10
When at a point two solid phase changes to one solid phase on cooling then it is known as a) eutectoid point b) eutectic point c) peritectic point d) peritectoid point
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Engineering, 03.07.2019 14:10
Amass of 1.5 kg of air at 120 kpa and 24°c is contained in a gas-tight, frictionless piston-cylinder device. the air is now compressed to a final pressure of 720 kpa. during the process, heat is transferred from the air such that the temperature inside the cylinder remains constant. calculate the boundary work input during this process.
Answers: 2
Engineering, 03.07.2019 15:10
If you were designing a bumper for a car, would you prefer it to exhibit elastic or plastic deformation? why? consider the functions of a bumper in both a minor "fender-bender" and a major collision.
Answers: 1
Steady-state aircraft engine: In a jet engine, air enters from the fornt, fuel is added farther down...
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