Application of a generalized Langevin model to the two-dimensional mixing layer
Abstract
A modeled transport equation for the joint pdf of the velocities and a scalar has been solved numerically for the plane turbulent mixing layer. A generalized Langevin equation models the effects of the fluctuating pressure and viscosity, while a stochastic mixing model represents the effects of molecular diffusivity. Conditional modeling is included to account for intermittency. The calculated intermittency factor and both conditional and unconditional moments of the velocity field are compared with experimental data.
- Publication:
-
5th Symposium on Turbulent Shear Flows
- Pub Date:
- 1985
- Bibcode:
- 1985stsf.proc....3H
- Keywords:
-
- Langevin Formula;
- Mixing Layers (Fluids);
- Probability Density Functions;
- Turbulent Boundary Layer;
- Turbulent Mixing;
- Two Dimensional Boundary Layer;
- Computational Fluid Dynamics;
- Intermittency;
- Molecular Diffusion;
- Stochastic Processes;
- Velocity Distribution;
- Viscosity;
- Fluid Mechanics and Heat Transfer