Identification of Flow-Induced Noise Sources on Two-Dimensional High Lift Devices of Commuter Aircraft

Arifin Rasyadi Soemaryanto; M Fajar; TMI Hakim; Kurnia Hidayat; Sinung Tirtha

doi:10.30536/j.jtd.2021.v19.a3500

Identification of Flow-Induced Noise Sources on Two-Dimensional High Lift Devices of Commuter Aircraft

Authors

Arifin Rasyadi Soemaryanto Aeronautics Technology Center, National Institute of Aeronautics and Space (LAPAN), Indonesia
M Fajar Aeronautic Technology Center, National Institute of Aeronautics and Space (LAPAN), Indonesia
TMI Hakim Aeronautic Technology Center, National Institute of Aeronautics and Space (LAPAN), Indonesia
Kurnia Hidayat Aeronautic Technology Center, National Institute of Aeronautics and Space (LAPAN), Indonesia
Sinung Tirtha Aeronautic Technology Center, National Institute of Aeronautics and Space (LAPAN), Indonesia

DOI:

https://doi.org/10.30536/j.jtd.2021.v19.a3500

Keywords:

computational aeroacoustics, computational aerodynamics, high-lift devices, aircraft design Full Text:

Abstract

A numerical predictive tool of flow induced noise generated by deployed high-lift devices of commuter aircraft is presented in this paper. The aircraft high-lift devices are consisting of vane and flap component. The aim of this study is to identify the sources of flow induced noise on the wing and flap cross-section of the aircraft. This study is investigated only two-dimensional effects and two configuration of flap deflection. A numerical computation is carried out using a CFD software with Large Eddy Simulation fluid turbulence model and Ffowcs-Williams & Hawkings analogy for acoustic prediction. Several sound receivers have been installed on far-field and near-field region of the wing-vane-flap cross-section of aircraft to measure the sound spectra. It has been identified that on the cavity of wing and vane-flap cross-section has the highest sound pressure level than another region. There is a vortical separation and shear layer which is contributed to the generation of sound emission downward the cross-section

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Published

30-12-2021

How to Cite

Soemaryanto, A. R., Fajar, M., Hakim, T., Hidayat, K., & Tirtha, S. (2021). Identification of Flow-Induced Noise Sources on Two-Dimensional High Lift Devices of Commuter Aircraft. Indonesian Journal of Aerospace, 19(2), 127–134. https://doi.org/10.30536/j.jtd.2021.v19.a3500