EAS 4101 - Aerodynamics – Spring 2005
2/21/05, Exam #1
Name: _____________key___________
1/10
Questions:
(30 points total, 3 points each, unless otherwise marked)
1.
What is the definition of the center of pressure
for an airfoil?
The point on an airfoil about which the aerodynamic moment due to the distributed pressure load
is zero.
2.
What is the definition of the aerodynamic center
for an airfoil?
The point on an airfoil about which the aerodynamic moment due to the distributed pressure load
is not a function of the angle of attack.
3.
State the 3 methods (and their respective assumptions) discussed in class of deriving
Bernoulli’s equation
•
Inviscid, incompressible and along a stream line via Euler-S equation
•
Inviscid, incompressible and irrotational via Cartesian Euler equation
•
Conservative flow via energy equation
4.
For inviscid flow around a bend, does the pressure increase, decrease, or remain the same in
the outward direction from the bend (or radius of curvature is increasing)?
Pressure will increase via Euler-N equation

This
** preview**
has intentionally

**sections.**

*blurred***to view the full version.**

*Sign up*