| 1. | Simulation of the noise of landing gear through CFD - ONERA's Science Pictures |
| | Simulation of the noise of landing gear through CFD - ONERA's Science PicturesWho are we ?Science Pictures... Simulation of the noise of landing gear through CFD * * CFD :. Computational Fluid Dynamics. The external noise of an airliner in the approach phase is essentially aerodynamic and mostly comes from the friction of the air on the structure of the landing gear.. |
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| 2. | Acoustic propagation around a high-lift wing profile in a non-uniform flow - ONERA's Science Pictures |
| | Great progress has been achieved in noise reduction of the engines over the past decades, so the aerodynamic noise is not negligible anymore, particularly in landing configuration.... The objective of this simulation was to predict the directivity of the aeroacoustic source in a landing configuration.... |
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| 3. | Subsonic Aircraft (ASUB8) |
| | When another aircraft encounters this wake, it is subjected to roll and vertical movements which can be very hazardous, in particular during takeoff or landing.... |
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| 4. | Space capsules (CAPS1) |
| | Investigation of Parafoil for Capsule or Shuttle Landings... The advantage of this type of parachute used for landings of reentry bodies such as space capsules is that it is more manoeuvrable and therefore increases the accuracy of the autopilot.... |
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| 5. | Subsonic Aircraft (ASUBi) |
| | The pilot of an aircraft is sometimes compelled to proceed to an emergency landing.... According to the reasons and the circumstances, secured landing procedures are imposed to him.... For instance he can have to land " wheels up ".... |
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| 6. | Space capsules (Index) |
| | Atmospheric reentry and landing are the difficult parts of their mission.... |
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| 7. | Space capsules (CAPS1) |
| | Investigation of Parafoil for Capsule or Shuttle Landings... |
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| 8. | PowerPoint Presentation |
| | Contaminated runways pose a large operational risk to airplanes during take-off and landing.... Controlled Flight Into Terrain 6 % Gear-up Landing / Gear Collapse 7 % Tailstrike 3 % Undershoot 6 % Mid-air Collision 0 % Loss of Control In-Flight 13 % Runway Collision 2 % excursions were recorded in 2008, 27 excursions in 2007 and 22 excursions in 2006. Of the 28 runway excursions in 2008, 42 % were found to have contaminated runway / poor braking as a contributing factor.... |
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| 9. | Supersonic Aircraft (ASUP1) |
| | During takeoff and landing, when the aircraft is at high angle of attack, a powerful vortex system develops above a swept wing.... |
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| 10. | Helicopters (HELI2) |
| | One of the advantages of a helicopter is to be able to land almost anywhere, but the noise generated by their rotors is a drawback which limits their use in urban areas.... |
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