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Computing jet screech: a complex aeroacoustic feedback system
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Loh, Ching Y. Hultgren, Lennart S. |
| Copyright Year | 2002 |
| Description | The space-time conservation-element and solution-element method is employed to numerically study the near-field axisymmetric screech-tone noise of a typical underexpanded circular jet issuing from a sonic nozzle. For the computed case, corresponding to a fully expanded Mach number of 1.19, the self-sustained feedback loop is established without artificial means. The computed shock-cell structure, acoustic wave length, screech tone frequency, and sound pressure levels are in good agreement with existing experimental results |
| File Size | 719959 |
| Page Count | 11 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_20020081288 |
| Archival Resource Key | ark:/13960/t7bs3r653 |
| Language | English |
| Publisher Date | 2002-08-01 |
| Access Restriction | Open |
| Subject Keyword | Aeronautics (general) Noise Sound Sound Waves Numerical Analysis Feedback Screech Tones Near Fields Complex Systems Aeroacoustics Sound Pressure Sonic Nozzles 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 |
