ME6014
Computational fluid dynamics, Fourth year,
Department of Aeronautical Engineering, First and second Units Questions.
Answer ALL Questions
PART A – (10x 2 = 20 Marks)
- What is CFD and important applications of CFD in engineering?
- Write down the conservative form of the continuity equation and explain the terms involved.
- Distinguish between conservation and non-conservation forms of fluid flow.
- Write down conservative form of continuity equation and explain the terms involved.
- What are the basic equations of CFD?
- Write down the second order central mixed finite difference expression for
- What is meant by species transport?
- What are Physical boundary conditions in CFD?
- What is finite different method?
- Distinguish between Explicit and Implicit methods
Answer
all questions
11. Derive the
momentum equation for a viscous flow in partial differential conservation form.(16)
12.
Write down the elliptic, parabolic and
hyperbolic equations as applicable to computational fluid dynamics. (16)
13. Derive the
expressions Time-averaged equations in governing equations for Turbulent Flow (16)
14. Derive the
expressions for Turbulent–Kinetic
Energy Equations (16)
15. How do you
determine the accuracy of the discretization process? What are the uses and
difficulties of approximating the derivatives with higher order finite
difference schemes? (16)
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