Jawaharlal Nehru Technological University Anantapur 2011-3rd Year B.Tech Mechanical Engineering Computational Fluid Mechanics s, - Question Paper

Jawaharlal Nehru Technological University, Anantapur

ans any 5 ques.
All ques. carry equal marks Max Marks:80

1. Solve the subsequent equations by Gauss-Elimination method:
2x + 2y + 4z = 18
X + 3y + 2z = 13
3x + y + 3z = 14? [16]

2. explain the applications of CFD? [16]

3. Derive the stability condition for CTCS discretization of 2nd order wave formula using Von Neumann stability analysis? [16]

4. Derive the 1st order right forward difference and back ward finite difference approximation for the 2nd derivative of f with respect to x using Taylor series expansion? [16]

5. Derive the Navier-stokes equations in conservation form? [16]
6. discuss the method of solving an incompressible flow issue using stream function – Vorticity formulation? [16]

7. discuss the different computer graphic techniques used in CFD? [16]

8. discuss the need for turbulence modeling in dealing with CFD problems? elaborate the different turbulence models used in CFD problems? [16]

Earning:   Approval pending.