Accession Number:

AD0755889

Title:

Investigation of Turbulence: Equations for Compressible Gas, Space-Time Correlations in a Boundary Layer.

Descriptive Note:

Scientific rept. no. 8 (Final), 1 Jan 67-31 Jan 72,

Corporate Author:

AIX-MARSEILLE UNIV (FRANCE) INSTITUT DE MECANIQUE STATISTIQUE DE LA TURBULENCE

Personal Author(s):

Report Date:

1972-02-01

Pagination or Media Count:

12.0

Abstract:

Statistical equations for a turbulent compressible gas are given a in a generalized form, the complete definitions of the non-random parts of the turbulent quantities being kept free for a later stage b in the conventional form, the non-random parts being defined by the mean values of the turbulent quantities and c in a form which is much simpler for mathematical treatment and physical meaning, where the non-random parts of the extensive turbulent quantities are defined by the mean mass-weighted values. Space-time correlations in a subsonic turbulent boundary layer without and with heat transfer have been measured. Triple correlations of velocities are especially significant of the structure of large scale fluctuations. Author

Subject Categories:

  • Fluid Mechanics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE