A complete model of turbulence revisited
Abstract
The closure approximations used in the twoequation turbulence models are reviewed in order to determine an optimum choice of dependent variables. By using a combination of perturbation methods and numerical computations, it is shown that the conventional kepsilon and komegasquared formulations are generally inaccurate for boundary layers in an adverse pressure gradient and that a more suitable choice of dependent variables exists. As a result, a new twoequation model is developed which shows promise of being more accurate for boundary layers in an adverse pressure gradient than any other similar model.
 Publication:

AIAA, Aerospace Sciences Meeting
 Pub Date:
 January 1984
 Bibcode:
 1984aiaa.meetU....W
 Keywords:

 Closure Law;
 Computational Fluid Dynamics;
 Mathematical Models;
 NavierStokes Equation;
 Numerical Flow Visualization;
 Turbulence Models;
 Turbulent Boundary Layer;
 Fluid Injection;
 Incompressible Boundary Layer;
 KEpsilon Turbulence Model;
 Kinetic Equations;
 Perturbation Theory;
 Pressure Gradients;
 Surface Roughness Effects;
 Wall Flow;
 Fluid Mechanics and Heat Transfer