Engineering, 16.03.2020 18:44 nessuhbae6722

A convergent–divergent nozzle is designed to expand air from a chamber in which the pressure is 800 kPa and the temperature is 40°C to give Mach 2.5. The throat area of the nozzle is 0.0025 m2. Find a. The flow rate through the nozzle under design conditions b. The exit area of the nozzle c. The design back-pressure and the temperature of the air leaving the nozzle with this back-pressure d. The lowest back-pressure for which there is only subsonic flow in the nozzle e. The back-pressure at which there is a normal shock wave on the exit plane of the nozzle f. The back-pressure below which there are no shock waves in the nozzle g. The range of back-pressures over which there are oblique shock waves in the exhaust from the nozzle h. The range of back-pressures over which there are expansion waves in the exhaust from the nozzle i. The back-pressure at which a normal shock wave occurs in the divergent section of the nozzle at a point where the nozzle area is half way between the throat and the exit plane areas

Answers: 3

Show answers

Another question on Engineering

Engineering, 03.07.2019 15:10

Apiston-cylinder with a volume of 0.25 m3 holds 1 kg of air (r 0.287 k/kgk) at a temperature of 100 c. heat transfer to the cylinder causes an isothermal expansion of the piston until the volume triples. how much heat is added to the piston-cylinder?

Answers: 3

Answer

Engineering, 04.07.2019 18:10

Steel is coated with a thin layer of ceramic to protect against corrosion. what do you expect to happen to the coating when the temperature of the steel is increased significantly? explain.

Answers: 1

Answer

Engineering, 04.07.2019 18:20

Along 8-cm diameter steam pipe whose external surface temperature is 900c connects two buildings. the pipe is exposed to ambient air at 70c with a wind speed of 50 km/hr blowing across the pipe. determine the heat loss from the pipe per unit length. (b) air at 500c enters a section of a rectangular duct (15 cm x 20 cm) at an average velocity of 7 m/s. if the walls of the duct are maintained at 100c. a) the length of the tube for an exit temperature of the air to be 40 0c. b)the rate of heat transfer from the air. c) the fan power needed to overcome the pressure drop in this section of the duct.

Answers: 1

Answer

Engineering, 04.07.2019 19:10

What is a monomer? how do they form a ploymer from the view point of chemical bonding?

Answers: 1

Answer

You know the right answer?

A convergent–divergent nozzle is designed to expand air from a chamber in which the pressure is 800...

Questions