Exam_Final_2005 - EGN 6812 Fluid Mechanics I Fall 2005...

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EGN 6812 - Fluid Mechanics I – Fall 2005 12/16/05, Final Exam Name: _____________ ___________ 1/8 Questions: (40 points total, 4 points each, unless otherwise marked) 1. What are the conditions under which both the streamfunction and the velocity potential can be defined for a spherical coordinate system ? Will both satisfy Laplaces’s equation? 2. In ideal flow, it is common to employ superposition solutions of various individual solutions to Laplace’s equation in terms of the streamfunction and/or velocity potential. Is it also valid to superimpose pressure fields of each individual solution? Please justify your answer mathematically and/or physically. . 3. For an isentropic flow , what are the three remaining conditions that must be met for a flow to be considered incompressible? Please provide physical insight into each one. 4. What does the Kutta-Jouikowski Law state?
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EGN 6812 - Fluid Mechanics I – Fall 2005 12/16/05, Final Exam Name: _____________ ___________ 2/8 Questions: (40 points total, 4 points each, unless otherwise marked) 5. At a planar air/water interface, what are the appropriate boundary conditions for the continuity and momentum equations for incompressible flow without mass transfer? What approximation can be made? 6. For flow in a duct driven by an oscillatory pressure gradient there is an overshoot in the velocity profile near the wall (i.e., the maximum velocity profile does not occur at the center line). Physically describe why this occurs.
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This note was uploaded on 01/17/2012 for the course EGM 6812 taught by Professor Renweimei during the Fall '09 term at University of Florida.

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Exam_Final_2005 - EGN 6812 Fluid Mechanics I Fall 2005...

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