EAS 4101  Aerodynamics – Spring 2004
4/19/04, Exam #2
Name: ________________________
1
Questions:(40 points total, 4 points each, unless otherwise marked)
1.
When is flow in a boundary layer considered to be irrotational?
2.
What does the Reynolds number represent the ratio of in terms of typical forces?
3.
What are the normal/streamwise velocity boundary conditions for a viscous flow over a
moving solid body?
4.
Explain the assumption of “fully developed” in terms of flow physics for a flow in the z
direction.
5.
Physically, what is true about the ratio of the viscous and inertial forces in a boundary layer?
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View Full DocumentEAS 4101  Aerodynamics – Spring 2004
4/19/04, Exam #2
Name: ________________________
2
Questions continued: (40 points total, 4 points each, unless otherwise marked)
6.
Compared to ideal flow, what are four specific effects of viscosity on the flow over a wing?
7.
Draw a representative
vs.
L
C
for a thin, cambered finite wing
and compare it to a
vs.
Le
f
f
C
for a thin, infinite cambered airfoil
, please specifically comment about the
differences in angle of attack intercept and lift slope for 2D vs. 3D bodies
(8 points).
8.
Draw a representative
vs.
L
C
for a thin, infinite cambered airfoil that displays leading
edge stall
and compare it to the
vs.
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 Spring '08
 Sheplak
 Fluid Dynamics, Aerodynamics, Airfoil, single horseshoe vortex

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