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author:

Lei, Y. (Lei, Y..) [1] | Zhao, X. (Zhao, X..) [2]

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Scopus

Abstract:

Distributed electric propulsion (DEP) with four propellers distributed along the rear edge of the wing (pusher DEP configuration) promote aerodynamic interactions to a higher level. To study the aerodynamic performance of DEP with the rear wing through simulations and experiments, the multi-reference frame (MRF) with sliding grid is combined with wind tunnel tests. The obtained results demonstrate that the lift and drag of DEP increase with the angle of attack (AoA) and are related to the relative position of the propellers and wing. The propeller has no significant effect on the lift of the wing, and the lift and the AoA remain linear when the AoA is less than 16°. By contrast, the lift coefficient is much higher than the baseline (isolated wing), and the lift is greatly improved with the increasing drag when the AoA is greater than 16°. This is because the flow around the wing of the pusher configuration remains attached due to the suction of the inflow of the propeller on the trailing edge vortex. In addition, the acceleration effect on the free flow improves the kinetic energy of the airflow, which effectively delays the separation of the airflow in the slipstream region. © 2023 by the authors.

Keyword:

aerodynamic interactions distributed propulsion numerical solution wind tunnel tests

Community:

  • [ 1 ] [Lei Y.]School of Mechanical Engineering and Automation, Fuzhou University, Fuzhou, 350116, China
  • [ 2 ] [Lei Y.]Key Laboratory of Fluid Power and Intelligent Electro-Hydraulic Control, Fuzhou University, Fuzhou, 350116, China
  • [ 3 ] [Zhao X.]School of Mechanical Engineering and Automation, Fuzhou University, Fuzhou, 350116, China

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Source :

Applied Sciences (Switzerland)

ISSN: 2076-3417

Year: 2024

Issue: 1

Volume: 14

2 . 2 1 7

JCR@2018

CAS Journal Grade:4

Cited Count:

WoS CC Cited Count:

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ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 0

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