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Exam_final_2004

# Exam_final_2004 - EAS 4101 Aerodynamics Spring 2004 Final...

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EAS 4101 - Aerodynamics – Spring 2004 4/29/04, Final Exam Name: _____________ __________ 1/13 Questions:(40 points total, 4 points each) 1. What is the difference between an inviscid fluid and an inviscid flow? 2. Fluid motion can be kinematically decomposed into 4 types. List the 4 types of motion. For an ideal flow, which of these terms are non-zero? 3. What is a boundary condition in terms of pressure for an ideal flow over an airfoil? 4. Consider a boundary layer of thickness possessing a velocity profile () uy and an edge velocity e U . What is the momentum deficit ?

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EAS 4101 - Aerodynamics – Spring 2004 4/29/04, Final Exam Name: _____________ __________ 2/13 Questions:(40 points total, 4 points each) 5. Consider a boundary layer of thickness possessing a velocity profile () uy and an edge velocity e U . What is the mass flux deficit ? 6. Provide a physical explanation regarding the importance of the displacement thickness in terms of airfoil design. 7. What assumptions must be made in terms of the viscosity law to derive the Navier-Stokes equitations, 2 DV gP V Dt   8. For two thin airfoils possessing the same mean camber lines, but two different thicknesses, which airfoil will achieve a higher ,max c in wind tunnel experiments? Physically explain how this is related to the differing stall behaviors.
EAS 4101 - Aerodynamics – Spring 2004 4/29/04, Final Exam Name: _____________ __________ 3/13 Questions:(40 points total, 4 points each) 9.

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Exam_final_2004 - EAS 4101 Aerodynamics Spring 2004 Final...

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