Calculation of curved shear layers with twoequation turbulence models
Abstract
Three extensions of the kepsilon turbulence model were tested for shearlayer flows with streamline curvature. The first version is an algebraic stress model which was derived by simplification of modeled Reynolds stress equations and does not contain curvaturespecific empiricism. The other two versions use modified form of the dissipation rate equation. The test cases considered are a convexly curved boundary layer, a curved mixing layer and wall jets on logarithmic spiral surfaces. The results show that the algebraic stress model gives the best overall agreement in the curved part of the flow but predicts too fast a recovery after the removal of curvature.
 Publication:

NASA STI/Recon Technical Report N
 Pub Date:
 July 1982
 Bibcode:
 1982STIN...8323550R
 Keywords:

 Boundary Layer Flow;
 Boundary Layers;
 Curvature;
 Flow Equations;
 Shear Flow;
 Shear Layers;
 Turbulence Models;
 Turbulent Flow;
 Computational Fluid Dynamics;
 KEpsilon Turbulence Model;
 Mixing Layers (Fluids);
 Mixing Length Flow Theory;
 Reynolds Stress;
 Wall Jets;
 Fluid Mechanics and Heat Transfer