The incompressible fluid motion downstream of two-dimensional Tollmien Schlichting waves
Abstract
Detailed flow field measurements were made of the natural deformation of two-dimensional Tollein waves in a water tunnel. The waves were stimulated by a vibrating ribbon and amplified to ten to thirteen wave lengths. The spanwise position of the breakdown was not fixed by any roughness in the test section. The results indicate for the incipient transition a three dimensional structure composed by the basic flow and longitudinal counterrotating sheets of vorticity which are inclined downstream and overlap each other like roof shingles.
- Publication:
-
In AGARD Laminar-Turbulent Transition 8 p (SEE N78-14316 05-34
- Pub Date:
- October 1977
- Bibcode:
- 1977ltt..agarQ....W
- Keywords:
-
- Boundary Layer Transition;
- Three Dimensional Boundary Layer;
- Tollmien-Schlichting Waves;
- Two Dimensional Flow;
- Hydraulic Test Tunnels;
- Incompressible Fluids;
- Vortex Breakdown;
- Vortex Sheets;
- Wave Front Deformation;
- Fluid Mechanics and Heat Transfer