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
Descriptors:
Subject Categories:
- Fluid Mechanics