Title page for ETD etd-06112009-063924


Type of Document Master's Thesis
Author Lewis, Daniel Russell
URN etd-06112009-063924
Title Tip clearance and angle of attack effects upon the unsteady response of a vibrating flat plate in crossflow
Degree Master of Science
Department Mechanical Engineering
Advisory Committee
Advisor Name Title
No Advisors Found
Keywords
  • Unsteady flow (Aerodynamics)
Date of Defense 1993-02-05
Availability restricted
Abstract

The influence of tip clearance and angle of attack upon the mid-span unsteady pressure response of a vibrating flat plate was investigated experimentally. Unsteady pressure measurements were taken for a variety of incidence angles, vibration frequencies and tip clearances over a Mach number range of 0.2 to 0.6.

It was found that changes in tip clearance had an effect on measured pressure fluctuations at higher angles of attack and larger Mach numbers. It was also observed that the amplitude of the unsteady pressure increased as the incidence angle was increased.

The plate was mechanically induced to oscillate in translation, simulating the flISt bending mode. Averaged Fast Fourier Transforms were used to determine pressure oscillation amplitudes and phase lags with respect to the plate motion.

Files
  Filename       Size       Approximate Download Time (Hours:Minutes:Seconds) 
 
 28.8 Modem   56K Modem   ISDN (64 Kb)   ISDN (128 Kb)   Higher-speed Access 
[VT] LD5655.V855_1993.L484.pdf 23.34 Mb 01:48:04 00:55:34 00:48:37 00:24:18 00:02:04
[BTD] next to an author's name indicates that all files or directories associated with their ETD are accessible from the Virginia Tech campus network only.

Browse All Available ETDs by ( Author | Department )

dla home
etds imagebase journals news ereserve special collections
virgnia tech home contact dla university libraries

If you have questions or technical problems, please Contact DLA.