1. Downward pointing winglet design and assessment within the M-DAW research project.
- Author
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Hantrais-Gervois, J.-l., Grenon, R., Mann, A., and Büscher, A.
- Subjects
STOKES equations ,LOW temperature engineering ,AERODYNAMICS ,FLUID dynamics ,RETROFITTING ,REPAIRING ,MAINTENANCE - Abstract
The design and performance analysis of a wing tip device proposed within the M-DAW project by ONERA is presented. A proto-design process is described and the device was thoroughly assessed (mainly with Reynolds-Averaged Navier-Stokes simulations). The process was further explained through wind-tunnel tests at both low speed and high speed in the pressurised and cryogenic European transonic wind tunnel in Cologne. The device is a downward pointing winglet designed for a retrofit scenario (the wing could be modified only within the 96% - 100% bounds of the span). It was designed to keep the wing root bending moment of the clean wing at cruise unchanged so that the aerodynamic gains are the net gains provided by the device that can be directly installed without structural modifications of the wing. [ABSTRACT FROM AUTHOR]
- Published
- 2009
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