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Study of vortex shedding as related to torsional oscillations of a thin airfoil


Magnus, Richard J. (1948) Study of vortex shedding as related to torsional oscillations of a thin airfoil. Engineer's thesis, California Institute of Technology.


This report covers an experimental investigation of the relationship between the vortex shedding frequency and self excited torsional oscillation frequency for a thin airfoil. The work consisted of measurements of velocity fluctuations in the airstream in the vicinity of a wing model mounted in a wind tunnel so that it could oscillate about the wing axis. The velocity fluctuation measurements were made with the Wing restrained and with the wing oscillating at various angles of attack and wind velocities.

Two distinct types of oscillations were found. One type was self sustaining and increased in amplitude with increasing wind velocity while the other type stopped for velocities beyond some critical value.

Item Type:Thesis (Engineer's thesis)
Degree Grantor:California Institute of Technology
Division:Engineering and Applied Science
Major Option:Aeronautics
Thesis Availability:Public (worldwide access)
Research Advisor(s):
  • Nagamatsu, Henry T.
Thesis Committee:
  • Unknown, Unknown
Defense Date:1 January 1948
Record Number:CaltechETD:etd-12162008-142937
Persistent URL:
Default Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:5027
Deposited By: Imported from ETD-db
Deposited On:14 Jan 2009
Last Modified:26 Dec 2012 03:13

Thesis Files

PDF (Magnus_rj_1948.pdf) - Final Version
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