
Accession Number : AD0755889
Title : Investigation of Turbulence: Equations for Compressible Gas, SpaceTime Correlations in a Boundary Layer.
Descriptive Note : Scientific rept. no. 8 (Final), 1 Jan 6731 Jan 72,
Corporate Author : AIXMARSEILLE UNIV (FRANCE) INSTITUT DE MECANIQUE STATISTIQUE DE LA TURBULENCE
Personal Author(s) : Favre,Alexandre J.
Report Date : FEB 1972
Pagination or Media Count : 12
Abstract : Statistical equations for a turbulent compressible gas are given: (a) in a generalized form, the complete definitions of the nonrandom parts of the turbulent quantities being kept free for a later stage; (b) in the conventional form, the nonrandom 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 nonrandom parts of the extensive turbulent quantities are defined by the mean massweighted values. Spacetime 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 : (*COMPRESSIBLE FLOW, TURBULENCE), EQUATIONS, HEAT TRANSFER, VELOCITY, CORRELATION TECHNIQUES, SPECIFIC HEAT, TURBULENT BOUNDARY LAYER, SUBSONIC FLOW, FRANCE
Subject Categories : Fluid Mechanics
Distribution Statement : APPROVED FOR PUBLIC RELEASE