Brazilian Silent Aircraft Program

Paper #:
  • 2010-36-0506

Published:
  • 2010-10-17
Citation:
do Carmo, M. and Meneghini, J., "Brazilian Silent Aircraft Program," SAE Technical Paper 2010-36-0506, 2010, https://doi.org/10.4271/2010-36-0506.
Pages:
14
Abstract:
The Brazilian Silent Aircraft Program (Programa "Aeronave Silenciosa) is an initiative of six Brazilian Universities and Institutes (USP-Poli "University of Sao Paulo - Polytechnic School, USP/EESC - University of Sao Paulo - Sao Carlos Engineering School, UFSC - Federal University of Santa Catarina, UFU - Federal University of Uberlandia, UnB - University of Brasilia and IAE - Brazilian Institute of Aeronautics and Space) together with Embraer to develop methodologies and solutions for the aircraft external noise problem.The main goal of this initiative is to study and develop methodologies that will allow estimation of aircraft noise generation and propagation through three main approaches: numerical simulation (CAA), analytical and semi-empirical models, and wind tunnel and flight tests.The intention has been to create a joint effort including Brazilian aerodynamic and acoustic researchers to explore and integrate the three approaches, opening up the possibility for a new technological level in this area in Brazil. Therefore, the objective now is to integrate and consolidate aerodynamic and acoustic research efforts to encourage a stable, continuous and profound development.This program started to be organized in 2005, with a project kick-off in 2008. It is sponsored by Embraer, Fapesp (Sao Paulo Research Foundation) and Finep (Brazilian Innovation Agency). Since the beginning, up to total of 90 Brazilian researchers, undergraduate, post-graduate students and engineers have been involved in the program and a lot of important results have been produced.The objective of this lecture is to present the technical challenges that the program had to overcome and give an overview of the results that have been produced.
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