Open AccessAerodynamic effects of a folding wingtip to increase take-off, landing and cruise performance.
Author(s) -
Swaraj Singh,
Amala Raja Rajeswar Gajula,
Praneetha Maccha
Publication year - 2022
Publication title -
graduate research in engineering and technology
Language(s) - English
Resource type - Journals
ISSN - 2320-6632
DOI - 10.47893/gret.2022.1059
Subject(s) - wingtip device , wing , wingtip vortices , wing twist , lift induced drag , aerospace engineering , washout , lift to drag ratio , angle of attack , drag , wing configuration , engineering , aerodynamics , cruise , vortex , structural engineering , marine engineering , horseshoe vortex , mechanics , geology , physics , vortex ring , oceanography
The main purpose of a folding wing tip is to allow aerodynamically efficient high aspect ratio wing. To allow a wing tip to move in flight is to alleviate the loads and achieve lower wing weight or enable wing span to maximize. Thus reduces the induced drag and improve fuel efficiency. The folding wing tip may include spring devices in order to provide an additional gust loads alleviation ability in flight. A wing without a winglet produces wingtip vortices which increases drag as the air from the bottom surface of the wing (high pressure) tries to move to the upper surface (low pressure). To avoid this and have less vortices a winglet is used, around which the flow is same on both surfaces. A folding wingtip can be set at an angle of 0° to have maximum cruise performance and aspect ratio. If the wingtip is set in the range of 15°-50° it can increase lift during take-off. This folding wingtip can access any airport in the world because if it is folded at an angle of 90°, it can meet the gate requirements and restrictions of any airport. To study the performance of this mechanism, the wing tip was designed by using CATIA V5 software. The analysis of the wingtip at different angle of attacks was done using ANSYS and XFLR 5 softwares.