Questions Archive - Page 30 of 38

Find the shock angle and the total temperature at point P.

Consider an inviscid, adiabatic flow of air at free stream Mach number \(M_{\infty}=2\), across a compression corner \(\left ( \theta …

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Kisan Kumar Asked on 15th October 2019 in Aerodynamics.

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Consider flow over a thin aerofoil at Mach number,\(M_{\infty}=0.5\) at an angle of attack of \(\alpha\). Using the Prandtl-Glauert rule for compressibility correction find a formula for lift coefficient \(C_{L}\).

Consider flow over a thin aerofoil at Mach number, \(M_{\infty}=0.5\) at an angle of attack of \(\alpha\). Using the Prandtl-Glauert …

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Kisan Kumar Asked on 14th October 2019 in Flight mechanics.

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Consider the inviscid,adiabatic flow of air at free stream conditions \(M_{1}=2,P_{1}=1\;atm\) and \(T_{1}=288\;K\) around a sharp expansion corner \(\left ( \theta =20^{\circ} \right )\). Assume air to be calorically perfect with \(\gamma =1.4\). What is the Mach number \(M_{2}\), downstream of the expansion corner ?

Consider the inviscid,adiabatic flow of air at free stream conditions \(M_{1}=2,P_{1}=1\;atm\) and \(T_{1}=288\;K\) around a sharp expansion corner \(\left ( …

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Kisan Kumar Asked on 14th October 2019 in Aerodynamics.

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An elliptic orbit has its perigee at 400 km above the earth’s surface and apogee at 3400 km above the earth’s surface. For this orbit, what is the eccentricity and semi-major axis respectively.

An elliptic orbit has its perigee at 400 km above the earth’s surface and apogee at 3400 km above the …

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Kisan Kumar Asked on 14th October 2019 in Space dynamics.

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An aircraft in a steady level flight at forward speed of 50 m/s suddenly rolls by 180 and become inverted. If no other changes are made to the configuration or controls of the aircraft, what will be the nature of the subsequent flight path taken by the aircraft and its characteristic parameter?

An aircraft in a steady level flight at forward speed of \(50\; m/s\) suddenly rolls by \(180 ^{\circ}\) and become …

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Kisan Kumar Asked on 14th October 2019 in Flight mechanics.

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An aircraft with a mass of 5000 kg takes off from sea level with a forward speed of 50 m/s and starts to climb with a climb angle of 15 degree. What is the rate of climb and excess thrust available at the start of the climb?

An aircraft with a mass of 5000 kg takes off from sea level with a forward speed of 50 m/s …

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Kisan Kumar Asked on 11th October 2019 in Flight mechanics.

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An aircraft is performing a coordinated turn maneuver at a bank angle of 30 degree and forward speed of 100 m/s. Assume g=9.81 m/s^2 . What is the load factor and turn radius respectively?

An aircraft is performing a coordinated turn maneuver at a bank angle of \(30\) degree and forward speed of \(100\; …

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Kisan Kumar Asked on 11th October 2019 in Flight mechanics.

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A low speed wind tunnel has a contraction ratio of 14:1 and the cross-sectional area of the test section is 1m^2. The static pressure difference between the settling chamber and the test section is 40 cm of water column. Assume g=9.81m/s2,ρ_air=1.2kg/m3 and ρ_water=1000kg/m3. What is the speed of air in the test section?

A low speed wind tunnel has a contraction ratio of \(14:1\) and the cross-sectional area of the test section is …

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Kisan Kumar Asked on 10th October 2019 in Aerodynamics.

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A rocket engine is tested on a test bed under the ideal condition of fully expended jet. The exhaust velocity is \(2\; km/s\) through a nozzle of area \(2.5\;m^{2}\). The mass flow rate is \(200 \;kg/s\). What is the specific impulse of the propellant and the thrust developed?

A rocket engine is tested on a test bed under the ideal condition of fully expended jet. The exhaust velocity …

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Kisan Kumar Asked on 11th October 2019 in Rocket and Space propulsion.

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Find the total temperatures at the exit of the air intake and the compressor respectively.

A jet engine is operating at a Mach number of \(0.8\) at an altitude of \(10 \;km\).The efficiency of the …

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Kisan Kumar Asked on 10th October 2019 in Propulsion.

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