Download GTU BE/B.Tech 2017 Winter 6th Sem Old 160105 Computational Fluid Dynamics Ii Question Paper

Download GTU (Gujarat Technological University) BE/BTech (Bachelor of Engineering / Bachelor of Technology) 2017 Winter 6th Sem Old 160105 Computational Fluid Dynamics Ii Previous Question Paper

1
Seat No.: ________ Enrolment No.___________

GUJARAT TECHNOLOGICAL UNIVERSITY
BE - SEMESTER?VI (OLD) ? EXAMINATION ? WINTER 2017

Subject Code: 160105 Date: 08-11-2017
Subject Name: Computational Fluid Dynamics-II
Time: 02:30 pm to 05:00 pm Total Marks: 70
Instructions:
1. Attempt all questions.
2. Make suitable assumptions wherever necessary.
3. Figures to the right indicate full marks.

Q.1 (a) What is CFD? State its application in various fields. 07
(b) State the disadvantage of Central difference scheme and explain 1
st
order
upwind scheme.
07

Q.2 (a) What is Grid transformation? Explain with an example of airfoil. 07
(b) Write a note on Multidimensional Problem. 07
OR
(b) What is the need of Linearization? Explain the Beam and Warming
Method.
07

Q.3 (a) Derive the flux terms of governing equations for Numerical Solution of
Prandtl-Mayer expansion flow field.
07
(b) Discuss the calculation of step size in space and time for flow over flat plate. 07
OR
Q.3 (a) Explain purely subsonic flow through the CD nozzle. Also explain the boundary
conditions for the same.
07
(b) Explain TVD and flux limiters in brief 07

Q.4 (a) Explain the MacCormack subroutine for a flat plate 07
(b) Write a short note on High Resolution Schemes. 07
OR
Q.4 (a) Write a note on Shock tube problem. 07
(b) Write a short note on Stretched Grids with example. 07

Q.5 (a) Write a short note on Boundary Fitted Coordinate systems with example. 07
(b) Transform the governing equations of Prandtl-Mayer expansion flow field
from (x,y) coordinate system to (?,?) coordinate system
07
OR

Q.5 (a) Discuss the initial and boundary conditions for two dimensional unsteady,
supersonic, viscous flow over the flat plate.
07
(b)
Write a short note on The Godunov Approach with the help of the shock tube problem.
07

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