Exam Details
| Subject | computational fluid dynamics | |
| Paper | ||
| Exam / Course | b.tech | |
| Department | ||
| Organization | Vardhaman College Of Engineering | |
| Position | ||
| Exam Date | May, 2018 | |
| City, State | telangana, hyderabad |
Question Paper
(AUTONOMOUS)
B. Tech VII Semester Supplementary Examinations, May 2018
(Regulations: VCE-R14)
COMPUTATIONAL FLUID DYNAMICS
(Mechanical Engineering)
Date: 14 May, 2018 AN Time: 3 hours Max Marks: 75
Answer ONE question from each Unit
All Questions Carry Equal Marks
Unit I
1. How computational fluid dynamics is used as a research tool? Explain briefly. 6M
Derive an expression for momentum equation in differential form.
9M
2. Describe how CFD tool is used for automobile and engine applications. 8M
Discuss the physical boundary conditions along a wall for viscous flow for no slip
conditions.
7M
Unit II
3. Give an example of elliptical and parabolic equation. 3M
Obtain the characteristics lines for the equation shown below, where M∞ is the free
stream mach number, can be either subsonic or supersonic u1 and v1 are the small
perturbation of velocity relative to free stream velocity
1 1 0.
u v
x y
12M
4. With suitable grid arrangement explain implicit method. 8M
Define discritization error and truncated error.
7M
Unit III
5. Discuss the general transformation of the equation for three dimensional unsteady
flows.
8M
Write the difference between structured and unstructured grids.
7M
6. What are adoptive grids? Explain the need of adoptive grids for fluid flow problems. 5M
Derive an expression for steady state one dimensional heat conduction equation.
10M
Unit IV
7. Develop PISO algorithm for solving incompressible viscous flow problems. 9M
Discuss the evaluation of fluxes through cell surfaces using central discretization
scheme.
6M
8. Differentiate between staggered and collocated arrangement. 8M
Develop simple algorithm for solving incompressible viscous flow problems.
7M
Unit V
9. Distinguish between high Reynolds number models and low Reynolds number models. 8M
Explain mixing length model for turbulence flow.
7M
10. Explain grid generation for turbulence models. 7M
Discuss two equation model for turbulence flow. 8M
B. Tech VII Semester Supplementary Examinations, May 2018
(Regulations: VCE-R14)
COMPUTATIONAL FLUID DYNAMICS
(Mechanical Engineering)
Date: 14 May, 2018 AN Time: 3 hours Max Marks: 75
Answer ONE question from each Unit
All Questions Carry Equal Marks
Unit I
1. How computational fluid dynamics is used as a research tool? Explain briefly. 6M
Derive an expression for momentum equation in differential form.
9M
2. Describe how CFD tool is used for automobile and engine applications. 8M
Discuss the physical boundary conditions along a wall for viscous flow for no slip
conditions.
7M
Unit II
3. Give an example of elliptical and parabolic equation. 3M
Obtain the characteristics lines for the equation shown below, where M∞ is the free
stream mach number, can be either subsonic or supersonic u1 and v1 are the small
perturbation of velocity relative to free stream velocity
1 1 0.
u v
x y
12M
4. With suitable grid arrangement explain implicit method. 8M
Define discritization error and truncated error.
7M
Unit III
5. Discuss the general transformation of the equation for three dimensional unsteady
flows.
8M
Write the difference between structured and unstructured grids.
7M
6. What are adoptive grids? Explain the need of adoptive grids for fluid flow problems. 5M
Derive an expression for steady state one dimensional heat conduction equation.
10M
Unit IV
7. Develop PISO algorithm for solving incompressible viscous flow problems. 9M
Discuss the evaluation of fluxes through cell surfaces using central discretization
scheme.
6M
8. Differentiate between staggered and collocated arrangement. 8M
Develop simple algorithm for solving incompressible viscous flow problems.
7M
Unit V
9. Distinguish between high Reynolds number models and low Reynolds number models. 8M
Explain mixing length model for turbulence flow.
7M
10. Explain grid generation for turbulence models. 7M
Discuss two equation model for turbulence flow. 8M
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