Abstract
The relationship between free-stream turbulence and boundary layer behavior was investigated with the use of spectral measurements. The power spectral densities of turbulence quantities in transitional and fully-turbulent boundary layers were computed and compared to the power spectra of the same quantities measured in the free-stream both at high and low free-stream turbulence intensities. Fluctuations were seen for both transitional and fully-turbulent boundary layers under high and low free-stream turbulence conditions. Higher-frequency fluctuations, not seen in the transitional boundary layer were seen to be associated with turbulence production in the boundary layer and appear to not be directly related to free-stream unsteadiness.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 147-155 |
| Number of pages | 9 |
| Journal | American Society of Mechanical Engineers, Aerospace Division (Publication) AD |
| Volume | 40 |
| State | Published - Dec 1 1994 |
| Event | Proceedings of the 1994 International Mechanical Engineering Congress and Exposition - Chicago, IL, USA Duration: Nov 6 1994 → Nov 11 1994 |