FRANÇAIS
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Fundamental and Experimental Aerodynamics
Equipment
High-speed stereo PIV acquisition setup in S19Ch wind-tunnel (control of flow separation over a rounded ramp).
The MTRO team of DAFE possesses four different PIV acquisition systems, which enable to follow the constantly increasing needs in PIV measurements for both research and industrial contracts. Their technical characteristics are gathered below:
- System 1: High-speed stereo system (LaVision), composed of a Litron LDY 303 HE Laser (22.5 mJ per pulse at 1 kHz repetition rate, maximum repetition rate of 20 kHz) and two Phantom V12.1 CMOS cameras (6242 frames-per-second at 1280x800 resolution).
- System 2: Conventional, large field-of-view stereo system (Dantec), composed of a DualPower 200-15 Laser (200 mJ per pulse, repetition rate of 15 Hz), and two HiSense 11M CCD cameras.
- System 3: Conventional stereo system (Dantec), composed of a Quantel Twin Ultra Laser (120 mJ per pulse, repetition rate 30 Hz), and two HiSense 4M CCD cameras.
- System 4: Conventional stereo system (LaVision), composed of a Thalès PVL 400/TS Laser (350 mJ per pulse, repetition rate 12 Hz), and two Imager ProX 4M CCD cameras.
All cameras are equipped with Scheimpflug adapters, and each system has dedicated optics and data acquisition system.
Seeding is achieved using submicronic particles which are passively entrained by the flow. Depending on the temperature and pression conditions, different materials and smoke generators are used:
- Cold flows (T < 100°C): Olive oil, DEHS (Di-Ethyl-Hexyl-Sebacate) or propylene glycol droplets, generated by in-house Laskin nozzle, Magnum 1800 or Topas 210 H systems.
- Hot flows (T > 100°C) and/or high-pressure flows (p > 20 bar): Solid magnesium oxyde or titanium oxyde particles, injected with low and high pressure cyclone aerosol generators.
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 Overview Equipment Classical PIV Stereo PIV Tomo-PIV Software: FOLKI-SPIV ALPIV team |
