Abstract
The mixing dynamics of compressible jets were examined at velocity ratios less than zero. These negative velocity ratios were achieved by creating a counterflowing stream around the periphery of a supersonic jet. This countercurrent flow as investigated experimentally in highly compressible shear layers at convective Mach numbers between 0.8 and 2.0. The measurements demonstrate that the diffusion of supersonic jets with counterflow exceeds that observed in jets without counterflow by over 100%. The experiments also revealed that despite the highly three-dimensional nature of the mixing layer at high convective Mach numbers, the countercurrent mixing layer can sustain large scale structures which are shown to be responsible for the enhanced levels of jet diffusion.
| Original language | English (US) |
|---|---|
| Title of host publication | High Speed Jet Flows |
| Editors | T.T. Huang, J. Turner, M. Kawahashi, M.V. Otugen |
| Publisher | ASME |
| Pages | 97-102 |
| Number of pages | 6 |
| Volume | 214 |
| State | Published - Dec 1 1995 |
| Event | Proceedings of the 1995 ASME/JSME Fluids Engineering and Laser Anemometry Conference and Exhibition - Hilton Head, SC, USA Duration: Aug 13 1995 → Aug 18 1995 |
Other
| Other | Proceedings of the 1995 ASME/JSME Fluids Engineering and Laser Anemometry Conference and Exhibition |
|---|---|
| City | Hilton Head, SC, USA |
| Period | 8/13/95 → 8/18/95 |