PTU Punjab Technical University B-Tech May 2019 Question Papers 6th Semester Aerospace Engineering?
Total No. of Pages : 02
Total No. of Questions : 09
B.Tech.(Aerospace Engg.) (2012 Batch) (Sem.?6)
COMPUTATIONAL FLUID DYNAMICS
Subject Code : ASPE-309
M.Code : 72454
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
Q1 Answer briefly :
a) Parallel Processors
b) Finite Difference
c) Time marching
d) Viscous flow
e) Flux variables
f) Time accurate solution
g) Stretched Grid
h) Boundary fitted Grid
i) Explicit solution
j) Contour plot
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SECTION-B
Q2. Explain various terms in the Navier-Stokes equation (Momentum Equation) given below:
( u
)
p
.
uV
f
xx
yx
zx
x
t
x
x
y
z
( v
)
p
.
vV
f
xy
yy
zy
y
t
y
x
y
z
( )
w
p
.
w
V
f
xz
yz
zz
z
t
z
x
y
z
Q3. Explain artificial viscosity.
Q4. Explain shock fitting and shock capturing methods
Q5. Explain ADI implicit solution technique.
Q6. Write the generic form of the governing equations and explain various terms involved.
SECTION-C
Q7. Explain the process to set up a numerical solution of an unsteady inviscid flow using
suitable time marching technique.
Q8. Explain general transformation of the Laplace equation from physical space to
computational space for generating a curvilinear grid.
Q9. Write short notes on the followings :
a) Classifications of governing partial differential equations
b) CFL criteria
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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This post was last modified on 04 November 2019