A study of carbon dioxide emissions reduction opportunities for airlines on Australian international routes

Yin, Kwong-sang

doi:10.14264/uql.2017.688

Cited by 1 publication

(1 citation statement)

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“…Also, as less fuel is burned, emissions are reduced. Winglets can provide up to a 6% reduction in CO 2 emissions and an 8% reduction in NOx emissions [14][15][16]. They also increase the aftermarket value of the aircraft and add more aesthetic to the airplane design.…”

Section: Aoamentioning

confidence: 99%

Variable cant angle winglets for improvement of aircraft flight performance

2020

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Traditional winglets are designed as fixed devices attached at the tips of the wings. The primary purpose of the winglets is to reduce the lift-induced drag, therefore improving aircraft performance and fuel efficiency. However, because winglets are fixed surfaces, they cannot be used to control lift-induced drag reductions or to obtain the largest lift-induced drag reductions at different flight conditions (take-off, climb, cruise, loitering, descent, approach, landing, and so on). In this work, we propose the use of variable cant angle winglets which could potentially allow aircraft to get the best all-around performance (in terms of lift-induced drag reduction), at different flight phases. By using computational fluid dynamics, we study the influence of the winglet cant angle and sweep angle on the performance of a benchmark wing at Mach numbers of 0.3 and 0.8395. The results obtained demonstrate that by adjusting the cant angle, the aerodynamic performance can be improved at different flight conditions.

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Section: Aoamentioning

confidence: 99%