Turbulence transport models for numerical computation of complex turbulent flows
Abstract
Different approaches to describing the behavior of turbulence in mathematical form are reviewed, emphasizing the best available models for use in computing practically important two and three dimensional turbulent flows. The Reynolds form of the equations of motion is discussed, where the Navier-Stokes equations are averaged over a time scale which is long in comparison with all parts of the turbulent motion. The sole manifestations of turbulence in the resultant equations are the time averaged correlations between fluctuating velocity components. The schemes reviewed all fall into the category of single point closures.
- Publication:
-
NASA STI/Recon Technical Report N
- Pub Date:
- June 1980
- Bibcode:
- 1980STIN...8120386L
- Keywords:
-
- Dynamic Models;
- Mathematical Models;
- Transport Theory;
- Turbulence Models;
- Turbulent Flow;
- Channel Flow;
- Diffusion Theory;
- Flow Velocity;
- Fluctuation Theory;
- Homogeneous Turbulence;
- Reynolds Equation;
- Reynolds Stress;
- Shear Flow;
- Static Pressure;
- Time Dependence;
- Wall Flow;
- Fluid Mechanics and Heat Transfer