| 1. | Aerodynamics - Special prize from the ESA for Sébastien Deck |
| | The ZDES method, included in Onera's aerodynamic simulation software " elsA ' and soon to be included in the " Cèdre " energetic software, is also useful to other applications such as civilian aircraft (buffeting prediction), helicopters, issues of stealth for jets and drones, and it could also be useful in other fields such as automobiles and hydrodynamics.... |
| |
| 2. | Buffeting in the air - ONERA's Science Pictures |
| | Buffeting in the air - ONERA's Science PicturesWho are we ?Science Pictures... Buffeting in the air copyright © ONERA 2006 - All rights reserved. Vortices caused in the wake of the aircraft linked to the appearance of buffeting (calculation by Vincent Brunet -). Buffeting is a vibration of the aircraft that may appear during maneuvers at cruising speed.. |
| |
| 3. | JSO AppUn Sagaut |
| | Buffeting on OAT15A airfoil (case with well-defined spectral peaks)... Buffeting : large-amplitude pseudo-periodic shock oscillation Instability due to shock / boundary layer interaction High lift & Mach number... Buffeting on a 2D OAT15A airfoil... |
| |
| 4. | oat15 2 12 2011 |
| | The buffeting phenomenon... An aircraft in transonic conditions at high Mach number or high incidence Shock wave / turbulent boundary layer interaction Separation + shock unsteadiness Important pressure (and loads) fluctuations on wings Structure vibrations (" Buffeting ") Limit the flight envelope of the aircraft (non destructive phenomenon)... |
| |
| 5. | Origin of transonic buffet on aerofoils |
| | Buffeting flow on transonic aerofoils serves as a model problem for the more complex three-dimensional flows responsible for aeroplane buffet.... The unstable modes provide insight into the basic character of buffeting flow at nearcritical conditions and are consistent with fully nonlinear simulations.... |
| |
| 6. | ONERA - Aerodynamics and Energetics Modeling (DMAE) - References |
| | Unsteady numerical prediction of buffeting on an airfoil (elsA code)... |
| |
| 7. | PUMA Project - Plasmas For Aerodynamics Flow Control - Onera |
| | PRF BUFET'nCo, where PSJ will be studied as fluid vortex generator to reduce buffeting.... |
| |
| 8. | Transonic Flow around Fuselage and Wings - ONERA's Science Pictures |
| | This zone, strongly unstable, is likely to cause important lateral instability on the plane, and thus its buffeting, which limits the flight envelope.... |
| |
| 9. | The European program UFAST (Unsteady eFfects of shock wAve induced SeparaTion) |
| | Buffeting....... |
| |
| 10. | Aucun titre de diapositive |
| | Study of buffeting... Remarks for the use of DNS / LES in the aeronautical context · Physics dominated by the boundary layer dynamics (buffeting) - 2D geometry - t 0.2µs - 1h CPU 0. 0001s (1 proc.... NEC SX5) · Need to reduce the CPU time to realise some studies : - low-frequency phenomena (buffeting, flapping wing ,....) - " multi-scale " geometry : actuator for control... |
| |
