Effect of changes in flap deflection and addition of slat clearance on aerodynamic performance of the wing airfoil NACA 43018 in the cruising and landing phases

S. P. Setyo Hariyadi*, Wawan Aries Widodo, Bambang Junipitoyo, Imam Sonhaji

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

The phase change from cruising to landing is one of the critical conditions in aircraft flight. The role of the control surface and high lift devices of the aircraft is the focus of attention in this condition because these components greatly affect the movement of the aircraft. In today's commercial aircraft, flaps and slat clearance are always used on the wings so that they affect the movement and aerodynamic performance of the aircraft. Changes in the cruising and landing flight phases affect aerodynamic performance because the combination of flap and slat clearance changes. This research was conducted by numerical simulation on the NACA 43018 wing airfoil. The observed conditions were plain wing, slot, and flap which were compared with the use of slat slot and a flap in cruising and landing conditions. The angle of attack used is (α)=0o, 2o, 4o, 6o, 8o, 10o, 12o, 15o, 16o, 17o, 19o, and 20o. Numerical simulation using Ansys 19.1 application with turbulent model k-ϵ Realizable at velocity freestream of 120 m/s. Changes in the slat clearance and flap deflection elements from the cruise to landing phase cause a very significant change in aerodynamic performance. Flap δT = 0o which has the highest aerodynamic performance and a high stall angle is then converted to flap δT = 30o which has low aerodynamic performance and low stall angle according to the desired flight phase conditions. Induced drag has a large influence on the formation of the total drag of all configurations where the flap δT = 30o has the highest value. The use of slats increases the momentum of the flow to delay the separation and reduce the tip vortex effect. Keywords: slat clearance, cruising, NACA 43018, flap deflection, landing.

Original languageEnglish
Title of host publicationInternational Conference on Mechanical Engineering and Emerging Technologies, ICOMEET 2021
EditorsLovely Son, Haznam Putra, Ismet Hari Mulyadi, Jhon Malta, Dedison Gasni
PublisherAmerican Institute of Physics Inc.
ISBN (Electronic)9780735444768
DOIs
Publication statusPublished - 3 May 2023
Event1st International Conference on Mechanical Engineering and Emerging Technologies, ICOMEET 2021 - Padang, Virtual, Indonesia
Duration: 3 Nov 2021 → …

Publication series

NameAIP Conference Proceedings
Volume2592
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

Conference1st International Conference on Mechanical Engineering and Emerging Technologies, ICOMEET 2021
Country/TerritoryIndonesia
CityPadang, Virtual
Period3/11/21 → …

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