An Investigation of the Aerodynamic Performance for a Fuel Saving Double Channel Wing Configuration

Hongbo Wang, Wenbiao Gan and Daochun Li
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Hongbo Wang: Institute of Unmanned System, Beijing University of Aeronautics and Astronautics, Beijing 100191, China
Wenbiao Gan: Institute of Unmanned System, Beijing University of Aeronautics and Astronautics, Beijing 100191, China
Daochun Li: Institute of Unmanned System, Beijing University of Aeronautics and Astronautics, Beijing 100191, China

Energies, 2019, vol. 12, issue 20, 1-16

Abstract: This paper presents a fuel saving double channel wing (FADCW) configuration for a propeller driven aircraft to reduce fuel consumption. In pursuit of this objective, FADCW configuration combines the tractor propeller layout and over-the-wing propeller layout. The basic idea is to improve the wing lift-to-drag ratio by taking advantage of the beneficial propeller influence on the wing. Based on a multi reference frame method solving Reynolds averaged Navier-Stokes equations, the contrastive study of this configuration and a traditional tractor propeller-wing layout is conducted. It is shown that the propeller slipstream in the tractor propeller configuration leads to a 10.28% reduction in the wing lift-to-drag ratio. With the same reference wing area and the propeller rotation speed; however, the FADCW configuration can reduce the wing drag by 10.41% and increase its lift-to-drag ratio by 13.29%, which results in a 20.15% reduction in the fuel consumption compared with the traditional tractor propeller configuration.

Keywords: fuel saving; drag reduction; lift-to-drag ratio; propeller; slipstream; double channel wing configuration (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2019
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