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Decay of Turbulence Behind Three Similar Grids


Corrsin, Stanley (1942) Decay of Turbulence Behind Three Similar Grids. Engineer's thesis, California Institute of Technology. doi:10.7907/GXRW-6609.


u’ and v’ decay measurements were made behind three similar girds. The u’ readings were corrected for wire length and the v’ readings were corrected for the sensitivity of the v’-meter to u’. These corrected values were plotted against x/M on logarithmic cross-section paper. The slope of these lines gave the exponent in the theoretical law for the decay of isotropic turbulence. A consistent deviation was found between the average u’ and v’ values. A suitable length correction applied to the v’ values would increase them somewhat, lessening the discrepancy, and giving a true comparison between the two components of the turbulent energy. From a comparison of the present u’ values behind the 1” grid with the u’ values measured with a free stream turbulence level 10 times as great as the present one, it is concluded that the change in initial turbulence has no appreciable effect on the u’ behind a grid.

Item Type:Thesis (Engineer's thesis)
Subject Keywords:(Aeronautical Engineering)
Degree Grantor:California Institute of Technology
Division:Engineering and Applied Science
Major Option:Aeronautics
Thesis Availability:Public (worldwide access)
Research Advisor(s):
  • Liepmann, Hans Wolfgang
Thesis Committee:
  • Unknown, Unknown
Defense Date:1 January 1942
Record Number:CaltechETD:etd-04062006-141720
Persistent URL:
Default Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:1279
Deposited By: Imported from ETD-db
Deposited On:10 Apr 2006
Last Modified:10 Nov 2023 00:03

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