Download GTU BE/B.Tech 2019 Summer 5th Sem New 2150104 Computational Fluid Dynamics Ii Question Paper

Download GTU (Gujarat Technological University) BE/BTech (Bachelor of Engineering / Bachelor of Technology) 2019 Summer 5th Sem New 2150104 Computational Fluid Dynamics Ii Previous Question Paper

1
Seat No.: ________ Enrolment No.___________

GUJARAT TECHNOLOGICAL UNIVERSITY

BE - SEMESTER ?V (NEW) EXAMINATION ? SUMMER 2019
Subject Code: 2150104 Date: 03/06/2019

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 are the various boundary conditions? 03
(b) Explain (1) Symmetry & (2) Periodic boundary conditions. 04
(c) Explain steps involved in solving finite volume method for one
dimensional steady state diffusion problem.
07

Q.2 (a) What is the full form of SIMPLE, SEIMPL-R & PISO? 03
(b) Explain Staggered Grid. 04
(c) Explain SIMPLE algorithm in detail. 07
OR
(c) Compare SIMPLE, SIMPLE-R and SIMPLE-C. 07
Q.3 (a) Why pressure velocity coupling is required in the solution of
Incompressible flow problems.
03
(b) What is TDMA? Explain in detail. 04
(c) Explain PISO algorithm in detail. 07
OR
Q.3 (a) Why under-relaxation is required in SIMPLE? 03
(b) State the need of Upwind scheme over the central difference
scheme.
04
(c) Write a note on Beam and Warming method. 07
Q.4 (a) Draw 2D grid used for discretizationproblem and also write
general discretized equation for interior nodes.
03
(b) Solve FVM for steady one dimensional convection and
diffusion problem.
04
(c) What are the general properties of discretizationschemes? 07
OR
Q.4 (a) How Finite Volume Method Works? Explain in brief. 03
(b) Explain Crank-Nicolson Scheme for the FVM for unsteady heat
conduction problem
04
(c) Explain how central differencing schemes works? 07
Q.5 (a) Explain supersonic viscid flow over the flat plate. 03
(b) Explain different boundary conditions for supersonic viscid flow
over the flat plate.
04
(c) Explain flow chart for Mac-Cormark subroutine. 07
OR

Q.5 (a) How multidimensionality does make the solution more
difficult?
03
(b) Explain 2
nd
order upwind schemes. 04
(c) Write a note on High Resolution schemes. 07

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