B.E-B.E Aeronautical Engineering Aerodynamics I(Sathyabama University, Chennai, Tamil Nadu-2010)
Friday, 23 August 2013 02:30Duraimani
(Established under section 3 of UGC Act,1956)
Course & Branch :B.E - AERO
Title of the Paper :Aerodynamics – I Max. Marks :80
Sub. Code :526404/626402 Time : 3 Hours
Date :28/04/2010 Session :FN
PART - A (10 x 2 = 20)
Answer ALL the Questions
1. Write the Momentum equation for steady incompressible flow.
2. Define: Blasius theorem.
3. Define: Source, sink flows.
4. State the conditions for irrotational flows.
5. What is the strength of Point vortex?
6. What is the application of Joukowski’s transformation to flow problems with respect to airfoils?
7. Enumerate the application of thin airfoil theory.
8. What is Horse shoe vortex?
9. Write the general form of Energy equation for two dimensional flows.
10. Define: Boundary layer.
PART – B (5 x 12 = 60)
Answer All the Questions
11. Derive steady two dimensional flow Continuity equation in partial differential form using finite control volume approach.
(or)
12. Explain angular velocity, vorticity and dilatation of a fluid element.
13. Derive the expression of Stream functions and Velocity potential functions.
(or)
14. (a) What are the characteristics of a vortex flow?
(b) State and prove Kutta-Joukowski’s theorem.
15. Explain how the Joukowski’s transformation is used to obtain a circular aerofoil.
(or)
16. Enumerate the limits and applications of Joukowski’s aerofoils.
17. Derive the fundamentals equation of thin aerofoil theory and give the assumptions that are made in thin aerofoil theory.
(or)
18. (a) Explain Starting vortex and horse shoe vortex. (6)
(b) Explain Lifting line theory and its limitations (6)
19. Derive Navier-stokes equations for an unsteady, compressible three Dimensional viscous flows.
(or)
20. Explain displacement thickness and momentum thickness in boundary layer theory.
| Earning: ₹ 3.05/- |
