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NUMERICAL EVALUATION OF DYNAMIC STABILITY DERIVATIVES FOR HIGH LIFT DEVICES

Hamood Ur Rahman, Adnan Maqsood*, Rizwan Riaz, Laurent Dala

*Corresponding author for this work

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

    Abstract

    This research aims to find the fundamental effects of high lift devices on the stability characteristics of a high-lift airfoil through computational fluid dynamics. Stability derivatives are calculated for four configurations: clean, slat deployed, flap deployed, and slat and flap deployed configuration. The static and dynamic coefficients are calculated by using the forced oscillation technique. Simulations are performed at various angles of attack and keeping the oscillation amplitude and frequency constant. This approach enabled the efficient and accurate computation of stability derivatives. The results indicate an improvement in static stability characteristics; however, the dynamic stability deteriorates with the deployment of high-lift devices.

    Original languageEnglish
    Title of host publication32nd Congress of the International Council of the Aeronautical Sciences, ICAS 2021
    PublisherInternational Council of the Aeronautical Sciences
    ISBN (Electronic)9783932182914
    Publication statusPublished - 2021
    Event32nd Congress of the International Council of the Aeronautical Sciences, ICAS 2021 - Shanghai, China
    Duration: 6 Sept 202110 Sept 2021

    Conference

    Conference32nd Congress of the International Council of the Aeronautical Sciences, ICAS 2021
    Country/TerritoryChina
    CityShanghai
    Period6/09/2110/09/21

    Keywords

    • CFD
    • High-lift
    • Pitch moment damping
    • Stability

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