Abstract
Experimental investigations of the evolution of a harmonic point-source disturbance in a laminar flatplate boundary layer are discussed. The experiments were performed in a laminar water-channel designed for low-speed transition experiments. Small initial disturbances were introduced at a point source by periodic excitation with a single frequency. Detailed hot-film measurements in the linear regime of disturbance development show a wedge-like downstream evolution of the resulting wave train. A subharmonic-type breakdown process of the wave train with the characteristic pattern of staggered A-shaped vortices was observed by using flow visualization with hydrogen-bubbles and laser-sheet illumination.
| Original language | English (US) |
|---|---|
| Pages | 1-12 |
| Number of pages | 12 |
| State | Published - 1995 |
| Event | Fluid Dynamics Conference, 1995 - San Diego, United States Duration: Jun 19 1995 → Jun 22 1995 |
Other
| Other | Fluid Dynamics Conference, 1995 |
|---|---|
| Country/Territory | United States |
| City | San Diego |
| Period | 6/19/95 → 6/22/95 |
ASJC Scopus subject areas
- Aerospace Engineering
- Mechanical Engineering
- Fluid Flow and Transfer Processes
- Energy Engineering and Power Technology