A technique for evaluation of three-dimensional behavior in turbulent boundary layers using computer augmented hydrogen bubble-wire flow visualization
Abstract
A system is described which allows the recreation of the three-dimensional motion and deformation of a single hydrogen bubble time-line in time and space. By digitally interfacing dualview video sequences of a bubble time-line with a computer-aided display system, the Lagrangian motion of the bubble-line can be displayed in any viewing perspective desired. The u and v velocity history of the bubble-line can be rapidly established and displayed for any spanwise location on the recreated pattern. The application of the system to the study of turbulent boundary layer structure in the near-wall region is demonstrated.
- Publication:
-
Experiments in Fluids
- Pub Date:
- March 1983
- DOI:
- 10.1007/BF00282266
- Bibcode:
- 1983ExFl....1...43S
- Keywords:
-
- Computer Programs;
- Flow Visualization;
- Three Dimensional Flow;
- Turbulent Boundary Layer;
- Bubbles;
- Flow Distribution;
- Time Dependence;
- Velocity Distribution;
- Fluid Mechanics and Heat Transfer