Statistical Approach to Inhomogeneous Turbulent Diffusion: General Formulation and Diffusion of a Passive Scalar in Wall Turbulence
Abstract
Analysis is made of inhomogeneous turbulent diffusion of a passive scalar in the presence of mean scalar and velocity fields. A general expression is found for the scalar-velocity covariance by means of the statistical approach to inhomogeneous turbulence recently developed by the author. Using the expression, the mean scalar field in wall turbulence is examined to find the logarithmic scalar profile, with good agreement with experimental findings.
- Publication:
-
Journal of the Physical Society of Japan
- Pub Date:
- August 1979
- DOI:
- Bibcode:
- 1979JPSJ...47..659Y
- Keywords:
-
- Covariance;
- Fluid Flow;
- Inhomogeneity;
- Scalars;
- Turbulent Diffusion;
- Wall Flow;
- Green'S Functions;
- Incompressible Fluids;
- Mean;
- Turbulence;
- Velocity Distribution;
- Fluid Mechanics and Heat Transfer