Download GTU BE/B.Tech 2018 Winter 5th Sem New 2150104 Computational Fluid Dynamics Ii Question Paper

Download GTU (Gujarat Technological University) BE/BTech (Bachelor of Engineering / Bachelor of Technology) 2018 Winter 5th Sem New 2150104 Computational Fluid Dynamics Ii Previous Question Paper

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1
Seat No.: ________ Enrolment No.___________

GUJARAT TECHNOLOGICAL UNIVERSITY

BE - SEMESTER ?V (NEW) EXAMINATION ? WINTER 2018
Subject Code:2150104 Date:20/11/2018

Subject Name:Computational Fluid Dynamics II

Time: 10:30 AM TO 01:00 PM Total Marks: 70

Instructions:

1. Attempt all questions.

2. Make suitable assumptions wherever necessary.

3. Figures to the right indicate full marks.

MARKS

Q.1 (a) Why Pressure-Velocity coupling is required? 03
(b) What is Staggered Grid? Why it is used? 04
(c) Explain different types of inlet and outlet boundary conditions. 07

Q.2 (a) Explain 1
st
order Upwind scheme. 03
(b) State the advantages of SIMPLE-R algorithm. 04
(c) Write a note on PISO algorithm. 07
OR
(c) Write a short note on Flux Vector Splitting. 07
Q.3 (a) State the disadvantages of SIMPLE algorithm. 03
(b) What is TVD condition? 04
(c) Explain finite volume method (FVM) for two dimensional diffusion
problems given by,

07
OR
Q.3 (a) Explain 2
nd
order Upwind scheme. 03
(b) State the advantages of PISO. 04
(c) Explain SIMPLE Algorithm. 07
Q.4 (a) Number of calculations involved in SIMPLE-R is more than SIMPLE.
True or False? Why?
03
(b) What is TDMA? Why it is used? 04
(c)





Explain finite volume method (FVM) for steady one dimensional
convection and diffusion problems given by,

07
OR
Q.4 (a) What is the need of Upwind scheme? 03
(b) How does SIMPLE and SIMPLE-C differ? 04
(c) Write a note on SIMPLE-R algorithm. 07
Q.5 (a) What is No-slip boundary condition? Explain with example. 03
(b) How step size is calculated for the flow over a flat plate? 04
(c) Write a note on Beam and Warming Method. 07
OR

Q.5 (a) Explain Crank-Nicholson scheme. 03
(b) Explain Tri Diagonal Matrix Algorithm (TDMA). 04
(c) Explain FVM for One-Dimensional unsteady heat conduction problem 07

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