Localization and Ranking of Aircraft Noise Sources in Flight Tests and Comparison with Acoustic Measurements of a Large-Scale Wing Model

M. Yu. Zaytsev; Зайцев М. Ю.; V. F. Kopiev; Копьев В. Ф.; S. A. Velichko; Величко С. А.; I. V. Belyaev; Беляев И. В.

doi:10.31857/S0320791922600561

Localization and Ranking of Aircraft Noise Sources in Flight Tests and Comparison with Acoustic Measurements of a Large-Scale Wing Model

Authors: Zaytsev M.Y.¹, Kopiev V.F.¹, Velichko S.A.¹, Belyaev I.V.¹
Affiliations:
1. Moscow Research Complex Central Aerohydrodamic Institute (TsAGI), 105005, Moscow, Russia
Issue: Vol 69, No 2 (2023)
Pages: 165-176
Section: АТМОСФЕРНАЯ И АЭРОАКУСТИКА
URL: https://vestnik.nvsu.ru/0320-7919/article/view/648283
DOI: https://doi.org/10.31857/S0320791922600561
EDN: https://elibrary.ru/ITUPXJ
ID: 648283

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Abstract

The noise of a modern regional aircraft was measured using the beamforming method during flight tests in the landing approach configuration with extended landing gear and deflected high-lift devices (slats and flaps). The localization and ranking of aircraft noise sources for full-scale Reynolds numbers has been carried out. Comparison of the flight test results with the results of acoustic measurements of airframe noise for a large-scale wing model obtained earlier at DNW-NWB showed good agreement between noise measurements of the large-scale model, scaled to full size, with the results for the airframe noise of an aircraft wing in flight tests.

Keywords

wing noise, airframe noise, beamforming, localization, scaling

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