Numerical simulation studies of transition phenomena in incompressible, two-dimensional flows
Abstract
Preliminary results of stability and transition studies are discussed which were obtained by employing an implicit finite difference method for the solution of the complete Navier-Stokes equation. The reaction of a flat plate boundary to periodic disturbances of finite amplitude is studied in order to gain insight into the nonlinear, two dimensional development of the transition process. In another effort the numerical model is applied to the investigation of stability and transition in plane Poiseuille flow with special consideration of nonlinear, spacewise disturbance amplification. The effects of a single roughness element (backward-facing step) on stability and transition in a boundary layer flow are also considered.
- Publication:
-
In AGARD Laminar-Turbulent Transition 8 p (SEE N78-14316 05-34
- Pub Date:
- October 1977
- Bibcode:
- 1977ltt..agarQ....F
- Keywords:
-
- Boundary Layer Transition;
- Finite Difference Theory;
- Navier-Stokes Equation;
- Two Dimensional Flow;
- Flat Plates;
- Incompressible Fluids;
- Laminar Flow;
- Mathematical Models;
- Fluid Mechanics and Heat Transfer