Application of a viscous-inviscid interaction procedure to predict turbulent separating flows over a rearward-facing step
Abstract
A viscous-inviscid interaction numerical procedure is used to predict steady, two-dimensional turbulent flow over a rearward-facing step. The accuracy of predictions is observed to be quite sensitive to the specification of length scale in the turbulence modeling. The best results are observed when the length scale is specified algebraically downstream of the step using parameters characteristic of the step geometry. Predictions of mean flow quantities and reattachment length are shown to be in generally good agreement with measurements obtained over a range of channel expansion ratios.
- Publication:
-
Computation of Internal Flows: Methods and Applications
- Pub Date:
- 1983
- Bibcode:
- 1983cifm.proc...73K
- Keywords:
-
- Backward Facing Steps;
- Computational Fluid Dynamics;
- Inviscid Flow;
- Separated Flow;
- Turbulent Flow;
- Viscous Flow;
- Channel Flow;
- Flow Geometry;
- Prediction Analysis Techniques;
- Reattached Flow;
- Fluid Mechanics and Heat Transfer