Parametric Analysis of the Influence of Slat Geometry on Acoustic Noise

Laura Botero Bolivar*, Lourenço Lima Pereira, Daniel Acevedo Giraldo, Fernando Martini Catalano, Danillo C. Reis, Eduardo L. C. Coelho

*Corresponding author for this work

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

5 Citations (Scopus)


This article addresses variations in different parameters of the slat internal geometry for the establishment of their relation with noise generation. Studies were carried out through a numerical method on the commercial version of PowerFLOW 5.3®. Numerical results of the baseline configuration were compared with experiments conducted in a closed section wind tunnel at the Laboratory of Aerodynamics (LAE) of the São Carlos School of Engineering - University
of São Paulo (EESC-USP), Brazil. The agreement between numerical and experimental results of both aerodynamic and aeroacoustic tests validated the numerical methodology. The parameters modified were cusp length, angle of cusp and angle of trailing edge. Cusp length and angle of trailing edge highly influenced the slat noise; the angle of the cusp showed a small relation with noise generation.
Original languageEnglish
Title of host publication2018 AIAA/CEAS Aeroacoustics Conference
PublisherAIAA Aviation Forum
Number of pages18
Publication statusPublished - 2018
Externally publishedYes
EventAIAA AVIATION Forum 2018 - Hyatt Regency Atlanta, Atlanta, United States
Duration: 25 Jun 201829 Jun 2018


ConferenceAIAA AVIATION Forum 2018
CountryUnited States

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