Loading...
Please wait, while we are loading the content...
Similar Documents
Experimental evaluation of fluctuating density and radiated noise from a high temperature jet
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Parthasarathy, S. P. Massier, P. F. Cuffel, R. F. |
| Copyright Year | 1973 |
| Description | An experimental investigation has been conducted to characterize the fluctuating density within a high-temperature (1100 K) subsonic jet and to characterize by the noise radiated to the surroundings. Cross correlations obtained by introducing time delay to the signals detected from spatially separated crossed laser beams set up as a Schlieren system were used to determine radial and axial distributions of the convection velocity of the moving noise sources (eddies). In addition, the autocorrelation of the fluctuating density was evaluated in the moving frame of reference of the eddies. Also, the autocorrelation of the radiated noise in the moving reference frame was evaluated from cross correlations by introducing time delay to the signals detected by spatially separated pairs of microphones. Radial distributions of the mean velocity were obtained from measurements of the stagnation temperature, and stagnation and static pressures with the use of probes. |
| File Size | 1406668 |
| Page Count | 31 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19730021509 |
| Archival Resource Key | ark:/13960/t4tj38r43 |
| Language | English |
| Publisher Date | 1973-10-01 |
| Access Restriction | Open |
| Subject Keyword | Fluid Mechanics Sound Propagation Acoustic Measurement Acoustic Properties Jet Flow Sound Transmission Subsonic Flow Flow Distribution High Temperature Environments Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
