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An experimental investigation of an axisymmetric jet in a coflowing airstream. [using laser doppler velocimeter
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Morton, J. B. Catalano, G. D. Humphris, R. R. |
| Copyright Year | 1976 |
| Description | The flow development of an axisymmetric jet exhausting into a moving airstream has been studied. The jet has a Reynolds number of 22,600, and the ratio of the jet velocity to the wind tunnel velocity is 5.1 to 1. The flow field of the axisymmetric jet was examined at locations varying from approximately zero to eight diameters downstream of the orifice. Of primary concern at each downstream location was the mapping of the one point statistical properties of the flow, including mean velocity, turbulent intensity, and intermittency. Autocorrelations and power spectral density curves were determined for both the fluctuating velocity field and the concentration signal at various distances from the jet's center line for different downstream locations. A laser Doppler velocimeter, using a phase locked loop processor, was used to make the desired velocity field measurements which were compared with hot wire anemometer and pressure probe data. |
| File Size | 2367569 |
| Page Count | 37 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19760019337 |
| Archival Resource Key | ark:/13960/t3mw76w99 |
| Language | English |
| Publisher Date | 1976-05-11 |
| Access Restriction | Open |
| Subject Keyword | Fluid Mechanics And Heat Transfer Turbulent Flow Laser Doppler Velocimeters Orifices Air Currents Flow Distribution Flow Velocity Jet Exhaust Axisymmetric Flow Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Technical Report |
