Classical closure theory and Lam's interpretation of epsilon-RNG
Abstract
Lam's phenomenological epsilon-renormalization group (RNG) model is quite different from the other members of that group. It does not make use of the correspondence principle and the epsilon-expansion procedure. We demonstrate that Lam's epsilon-RNG model is essentially the physical space version of the classical closure theory in spectral space and consider the corresponding treatment of the eddy viscosity and energy backscatter.
- Publication:
-
Final Report Institute for Computer Applications in Science and Engineering
- Pub Date:
- March 1995
- Bibcode:
- 1995icas.reptQ....Z
- Keywords:
-
- Navier-Stokes Equation;
- Renormalization Group Methods;
- Turbulence;
- Turbulence Models;
- Backscattering;
- Eddy Viscosity;
- Incompressible Flow;
- Fluid Mechanics and Heat Transfer