Q.1
14 Marks(a)
What are the applications of CFD?
(b)
Explain the momentum equation in conservation form.
(c)
Difference between FVM, FDM and FEM.
Gujarat Technological UniversitySummer 2026 examination
GTU 3161915 Computational Fluid Dynamics Summer 2026 Question Paper & PDF
B.E. · Mechanical Engineering · Semester 6 · Subject code 3161915
- Total
- 70 marks
- To pass
- 23 marks (33%)
- Duration
- 2.5 Hours 10:30 AM – 1:00 PM
- Questions
- 5 with internal choice
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Q.2
14 Marks(a)
List down the advantages of CFD over experimental methods.
(b)
Explain with an example how computational fluid dynamics is useful as a powerful research tool.
(c)
Explain the different boundary conditions used in CFD.
OR
(c)
What is Discretization? Why it is required? List the basic discretization techniques.
Q.3
14 Marks(a)
Justify: Implicit methods are unconditionally stable.
(b)
Explain advantages and disadvantages of implicit approach.
(c)
Derive the stability criteria for unsteady one dimensional heat transfer phenomena and listthe assumptions.
OR
(a)
What is Tridiagonal matrix algorithm method?
(b)
Discuss ADI scheme.
(c)
Derive an expression for unsteady state 2-D heat conduction equation in Cartesian coordinates by using Explicit approach.
Q.4
14 Marks(a)
Write a short note on Reynolds transport theorem.
(b)
Write a note on “False diffusion”
(c)
Discuss about 1-D Convection Diffusion equation by using upwind scheme.
OR
(a)
Difference between One and Two equation models in turbulence modeling.
(b)
Give the difference between collocated grid and staggered grid.
(c)
What is turbulence motion and how it could be captured with DNS, LES and RANS models.
Q.5
14 Marks(a)
Write a note on SIMPLE Algorithm.
(b)
Explain Reynold’s time averaging concept of turbulence.
(c)
Write a short note on Lax-Wendroff technique.
OR
(a)
Difference between One and Two equation models in turbulence modeling.
(b)
Write notes on Commercial CFD packages
(c)
Explain the method of solving an incompressible flow problem using stream function vorticity formulation.
Other Semester 6 subjects
BE Mechanical
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About this paper
Official Gujarat Technological University (GTU) examination paper for Computational Fluid Dynamics (Summer 2026, B.E. · Mechanical Engineering, Sem 6). Features complete 70-mark regular & remedial examination pattern, official marking distribution across all 5 questions, and direct 1-click official PDF download.
Transcribed for student exam preparation from Gujarat Technological University official examination archives. Questions, syllabus guidelines, and curriculum marking schemes remain the intellectual property of Gujarat Technological University.