ME8096 Important Questions Gas Dynamics and Jet Propulsion Regulation 2017 Anna University

ME8096 Important Questions Gas Dynamics and Jet Propulsion

ME8096 Important Questions Gas Dynamics and Jet Propulsion Regulation 2017 Anna University free download. Gas Dynamics and Jet Propulsion Important Questions ME8096 pdf free download.

Sample ME8096 Important Questions Gas Dynamics and Jet Propulsion

1. Air is discharged from a reservoir at Po = 6.91 bar and To =
325ºC through a nozzle to an exit pressure of 0.98 bar. If the
flow rate is 3600 Kg/hr, determine throat area, pressure and
velocity at the throat, exit area, exit Mach number and
maximum velocity. Consider flow is isentropic.
ME8096 Important Questions Gas Dynamics and Jet Propulsion
2. A conical diffuser has entry and exit diameters of 15 cm and
30 cm respectively. The pressure, temperature and velocity
of air at entry are 0.69 bar, 340 K and 180 m/s respectively.
Determine: (i) The exit pressure, (ii) The exit velocity (iii)
The force exerted on the diffuser walls.
Assume isentropic flow, γ= 1.4, Cp = 1.00 kJ/kg K.
ME8096 Important Questions Gas Dynamics and Jet Propulsion
3. In an isentropic flow diffuser the inlet area is 0.15 m2. At the
inlet velocity 240m/s, static temperature = 300 k and static
pressure 0.7 bar. Air leaves he diffuser with a velocity of
120 m/s. Calculate at the exit the mass flow rate, stagnation
pressure, stagnation temperature, area and entropy change
across the diffuser. ME8096 Important Questions Gas Dynamics and Jet Propulsion

An air craft is flying at an altitude of 11000 meters, at 800
Km/hr. the air is reversibly compressed in an inlet diffuser
the inlet temperature is 216.65 K and pressure is 0.226 bar.
If the Mach number at the exit of the diffuser is 0.35.
Calculate the Entry Mach number, Velocity, pressure and
temperature of air at the diffuser exit. (13)
ME8096 Important Questions Gas Dynamics and Jet Propulsion
11. Helium flows at Mach 0.5 in a channel with cross – sectional
area of 0.16 m2. The stagnation pressure of the flow is 1
MPa, and stagnation temperature is 1000 K. Calculate the
mass flow rate through the channel, with γ = 5/3.

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