PTU B.Tech Aerospace Engineering 5th Semester May 2019 71837 AERODYNAMICS II Question Papers

PTU Punjab Technical University B-Tech May 2019 Question Papers 5th Semester Aerospace Engineering

Roll No.
Total No. of Pages : 02
Total No. of Questions : 09
B.Tech.(Aerospace Engg.) (2012 Onwards) (Sem.?5)
AERODYNAMICS-II
Subject Code : ASPE-303
M.Code : 71837
Time : 3 Hrs. Max. Marks : 60
INSTRUCTION TO CANDIDATES :
1.
SECTION-A is COMPULSORY consisting of TEN questions carrying T WO marks
each.
2.
SECTION-B contains FIVE questions carrying FIVE marks each and students
have to attempt ANY FOUR questions.
3.
SECTION-C contains T HREE questions carrying T EN marks each and students
have to attempt ANY T WO questions.


SECTION-A
1.
Explain the followings briefly :

(a) Potential flow

(b) Supercritical airfoil

(c) Swept wing

(d) Drag Polar

(e) Flapped aerofoil flowfield

(f) Elliptical wing

(g) Biot-Savart's law

(h) Induced drag

(i) Formation flying

(j) Ground effect
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SECTION-B
2.
Theoretical lift coefficient for a thin, symmetric airfoil in an incompressible flow is C1 =
2. Calculate the lift coefficient for M = 0.7. Suggest improved compressibility
correction method.
3.
State the assumptions for thin aerofoil theory and explain important results of thin aerofoil
theory for a symmetrical aerofoil.
4.
Show that as per Prandtl's lifting line theory the geometric angle of attack is equal to the
sum of the effective angle and the induced angle of attack.
5.
Explain critical Mach number and a method to determine it for an aerofoil.
6.
List high lift devices and Explain the functioning of any two of these devices.

SECTION-C
7.
Derive an expression for velocity potential equation. State the necessary assumptions.
8.
Describe source panel method for simulating the non-lifting flow over a circular cylinder.
9.
Write short notes on the followings :

(a) Slender body theory

(b) Conical flow theory






NOTE : Disclosure of Identity by writing Mobile No. or Making of passing request on any
page of Answer Sheet will lead to UMC against the Student.
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