Experimental investigation of ground effects on aerodynamics of sinusoidal leading-edge wings-Reference-Cited by-同舟云学术

Experimental investigation of ground effects on aerodynamics of sinusoidal leading-edge wings

Published:2020-11-26 Issue:19 Volume:235 Page:3988-4001
ISSN:0954-4062
Container-title:Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science
language:en
Short-container-title:Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science

Author:

Mehraban AA¹,Djavareshkian MH¹^ORCID

Affiliation:

1. Department of Mechanical Engineering, Ferdowsi University of Mashhad, Mashhad, Iran

Abstract

Sinusoidal leading-edge wings have attracted many considerations since they can delay the stall and enhance the maneuverability. The main contribution of this research study is to experimentally investigate effects of ground on aerodynamic performance of sinusoidal leading-edge wings. To this end, 6 tubercled wings with different amplitudes and wavelengths are fabricated and compared with the baseline wing which has smooth leading-edge. Proposed wings are tested in different distances from the ground in a wind tunnel lab for a wide range of angle of attack from 0° to 36° and low Reynolds number of 45,000. Results indicated that lift coefficient is improved when wings get close to the ground. Furthermore, increment of protuberance amplitude in the vicinity of the ground could efficiently prevent stalling particularly for shorter wavelength.

Publisher

SAGE Publications

Subject

Mechanical Engineering

Link

http://journals.sagepub.com/doi/pdf/10.1177/0954406220975422

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