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Instantaneous 2d velocity and temperature measurements in high speed flows based on spectrally resolved molecular rayleigh scattering
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Seasholtz, Richard G. |
| Copyright Year | 1995 |
| Description | A Rayleigh scattering diagnostic for high speed flows is described for the simultaneous, instantaneous measurement of gas temperature and velocity at a number (up to about one hundred) of locations in a plane illuminated by an injection-seeded, frequency doubled Nd:YAG laser. Molecular Rayleigh scattered light is collected and passed through a planar mirror Fabry-Perot interferometer. The resulting image is analyzed to determine the gas temperature and bulk velocity at each of the regions. The Cramer Rao lower bound for measurement uncertainty is calculated. Experimental data is presented for a free jet and for preliminary measurements in the Lewis 4 inch by 10 inch supersonic wind tunnel. |
| File Size | 737920 |
| Page Count | 12 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19950017041 |
| Archival Resource Key | ark:/13960/t9v16zp44 |
| Language | English |
| Publisher Date | 1995-03-01 |
| Access Restriction | Open |
| Subject Keyword | Supersonic Flow Temperature Measurement Free Jets Rayleigh Scattering Two Dimensional Jets Spectrum Analysis Yag Lasers Wind Tunnel Tests Data Processing Gas Temperature Velocity Measurement Fabry-perot Interferometers Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
