Accession Number:

ADA055985

Title:

Temperature Correlations in Turbulent Boundary Layers.

Descriptive Note:

Interim rept.,

Corporate Author:

AEROSPACE CORP EL SEGUNDO CALIF IVAN A GETTING LABS

Personal Author(s):

Report Date:

1978-06-07

Pagination or Media Count:

39.0

Abstract:

Temperature fluctuation effects are examined in heated turbulent boundary layers. A modified Lagrangian integral procedure is used. The temperature fluctuations are matched at the laminar sublayer by using standard heat transfer theory to obtain their value. It is found that the temperature correlations are similar to the velocity correlations. They are, of course, at maximum near the laminar sublayer, decrease as one passes through that layer, and vanish beyond the boundary layer. The temperature correlation is an integral of the velocity correlations, which are assumed in this treatment to be given. It appears from this theory that they can have a small negative correlation at distances of a few local velocity scale lengths. There is a very weak Mach number dependence in the result. Author

Subject Categories:

  • Fluid Mechanics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE