A turbulence model for nonequilibrium adverse pressure gradient flows
Abstract
This paper presents a method for calculating compressible adverse pressure gradient boundary layers by using an algebraic eddy viscosity turbulence model that has been modified for variable pressure gradient and turbulence memory effects. The pressure gradient corrections are based on previous incompressible data correlations. Several methods for including the effects of turbulence memory are evaluated. A new lag model, which gives good agreement with available experimental data, is developed. Finally, a correlation is developed for the lag length parameter employed in the model as a function of the known experimental flow variables.
- Publication:
-
9th Fluid and Plasma Dynamics Conference
- Pub Date:
- July 1976
- Bibcode:
- 1976fpdy.confR....H
- Keywords:
-
- Compressible Boundary Layer;
- Nonequilibrium Flow;
- Pressure Gradients;
- Turbulence Models;
- Turbulent Boundary Layer;
- Turbulent Diffusion;
- Boundary Layer Flow;
- Data Correlation;
- Eddy Viscosity;
- Flow Distribution;
- Graphs (Charts);
- Fluid Mechanics and Heat Transfer