PTU B.Tech Aerospace Engineering 5th Semester May 2019 60521 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.(ANE) (Sem.?5)
AERODYNAMICS ? II
Subject Code : ANE-312
M.Code : 60521
Time : 3 Hrs. Max. Marks : 60
INSTRUCTIONS 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) Whitcomb's Area rule

(c) Supercritical airfoil

(d) Downwash

(e) Swept wing

(f) Helmholtz's theorem

(g) Drag Polar

(h) Supercritical aerofoil

(i) Flapped aerofoil flowfield

(j) Ground effect
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SECTION-B
2.
Explain briefly the significance of lift curve (CL - ). What are the factors by which the
maximum lift coefficient gets effected for a finite wing, explain.
3.
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.
4.
Derive the fundamental equation of Prandtl's lifting line theory.
5.
State the assumptions for thin aerofoil theory and explain important results of thin
aerofoil theory for a symmetrical aerofoil.
6.
Derive an expression for velocity potential equation. State the necessary assumptions.

SECTION-C
7.
Draw a neat sketch of leeward vortex flow field over a delta wing and explain the
spanwise pressure distribution.
8.
Describe source panel method for simulating the non-lifting flow over a circular cylinder.
9.
Write short notes on the following :

(a) Blsius Theorem

(b) Kutta Juokowaski Transformation






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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