Accession Number:

AD0425829

Title:

APPROXIMATIONS FOR STEADY-STATE ISOTROPIC TURBULENCE,

Descriptive Note:

Corporate Author:

NEW YORK UNIV N Y

Personal Author(s):

Report Date:

1963-09-01

Pagination or Media Count:

14.0

Abstract:

The direct-interaction approximation for turbulence maintained by stationary, isotropic, random stirring forces is formulated in the wavenumberfrequency domain. Further, simplifying approximations are made. The final equations involve the wavenumber energy-spectrum, a characteristic correlation frequency for each wavenumber, and a characteristic response frequency for each wavenumber. A relation is exhibited between the simplified equations and a Fokker-Planck type approximation recently proposed by S. F. Edwards. Author

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Distribution Statement:

APPROVED FOR PUBLIC RELEASE