| 1. | A laser to measure noise - Zoom in the Lab |
| | Laser Doppler Velocimetry (LDV).... The emission part of the 3D laser velocimetry measuring device of the F2 wind tunnel at the Fauga-Mauzac ONERA centre... Assembly of a reference acoustic source and microphones in the ONERA Fauga-Mauzac F2 wind tunnel set up to validate the method of acoustic pressure measurement by 3D laser velocimetry.... |
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| 2. | Aerodynamics - Computing power at the service of measurement |
| | Two ONERA engineer-researcher teams - one of experimental aerodynamicists, the other data processing experts specializing in image processing, have together developed the FOLKI*-SPIV software for high-speed processing of sequences of PIV images (Particle Image Velocimetry).... The flow takes off at the top of a bent slope : the PIV shows the speed field at all points of the observation window. (below : close-up of the rectangle above) * PIV (Particle Image Velocimetry) is an experimental technique that allows the speed fields of fluids to be measured by sowing the fluid with small particles that are imaged at a very high rate with high-speed cameras coupled to a laser flash. * The FOLKI algorithm family uses graphic processing units (GPU) that make it possible to reach - for some types of applications - computing powers that are much greater than those of the processors that are usually used.... |
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| 3. | Doopler Global Velocimetry - ONERA's Science Pictures |
| | Doopler Global Velocimetry - ONERA's Science Pictures... DGV, Doppler Global Velocimetry or the photography of velocity by laser... Doppler Global Velocimetry is used to measure the velocity of flow at each point of a plane, illuminated by laser.... This image was obtained while developing the Doppler Global Velocimetry technique (DGV).... |
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| 4. | ONERA DAFE : 2D and 3D Particle Image Velocimetry (PIV) - ONERA / DAFE-EN |
| | ONERA DAFE : 2D and 3D Particle Image Velocimetry (PIV) - ONERA / DAFE-EN... Particle Image Velocimetry (PIV)... Particle Image Velocimetry is one of the most frequently used experimental techniques in fluid mechanics.... |
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| 5. | ONERA - Applied Aerodynamics (DAAP) - Facilities |
| | PIV or Particle Image Velocimetry... |
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| 6. | Aerospace Lab Particle Image Velocimetry (ALPIV) - ONERA / DAFE-EN |
| | Aerospace Lab Particle Image Velocimetry (ALPIV) - ONERA / DAFE-ENWho are we ?The ALPIV team... Aerospace Lab Particle Image Velocimetry - software development. The ALPIV team is composed of both permanent researchers and PhD students of DTIM (Information Processing and Modelling Department) and DAFE.. |
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| 7. | S3 Transonic Wind-Tunnel - Control of Mixture at Nozzle Exit - ONERA / DAFE-EN |
| | Measurement by particle image velocimetry... |
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| 8. | S3 Transonic Wind-Tunnel - OAT15A Wing Profile in Critical Regime - ONERA / DAFE-EN |
| | Measurement by static and conditional laser velocimetry... |
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| 9. | Lille Water Tunnels - ONERA / DAAP-EN |
| | Laser Doppler velocimetry, holographic velocimetry... Particle Image Velocimetry (PIV)... |
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| 10. | Particle's Speed in an Airflow - ONERA's Science Pictures |
| | Laser Velocimetry copyright © ONERA 1996-2006... Laser velocimetry simulation of the measurement of a particle's speed in an airflow ()... |
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