Reg No.:_

G192175 Pages:2

Name:

APJ ABDUL KALAM TECHNOLOGICAL UNIVERSITY

SEVENTH SEMESTER B.TECH DEGREE EXAMINATION(R&S), DECEMBER 2019

Max. Marks: 100

1 a)
b)

2 9)
b)

3 a)
b)

4

5 9)
b)

6 a)

Course Code: ME461
Course Name: Aerospace Engineering

PARTA
Answer any three full questions, each carries 10 marks.
Derive the expressions for the pressure and density distributions in isothermal

regions of atmosphere.

Explain geometric, kinematic and dynamic similarity in model study.

If an airplane is flying at an altitude where the actual pressure and temperature
are 0.Sbar and 159.5K respectively, what are the pressure, temperature and
density altitudes?

Draw the pressure distribution around a 2-D aerofoil

Derive the expression for induced drag.

What is span efficiency factor? Explain.

Calculate the total drag and power requirement of an aircraft flying at 450km/h.
The wing area is 26.577 and aspect ratio is 8. The total mass of the flight is
8ton and is flying at an altitude of 5km. The parasite drag coefficient is 0.006
and the Oswald efficiency factor is 0.85

PART ‏تا‎
‎Answer any three full questions, each carries 10 marks.
What are propeller coefficients? Explain.

Derive the expression for thrust required for a level unaccelerated flight

Obtain the condition for minimum power required for a level unaccelerated

flight.

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Duration: 3 Hours

Marks

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(10)

(4)
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(7)