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Influence of the Wind Tunnel Model Mounting on the Wake Evolution of the Common Research Model in Post Stall Read chapter Read first chapter

2021 | OriginalPaper | Chapter

Experimental and Numerical Study on Helicopter Acoustic Scattering

Authors : Jianping Yin, Karl-Stéphane Rossignol

Published in: New Results in Numerical and Experimental Fluid Mechanics XIII

Publisher: Springer International Publishing

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Abstract

The scattering of noise generated by helicopter rotors has been recognized as having a significant influence on both the noise spectra and the noise directivity. This paper presents the research by DLR within the collaborative effort in the GARTEUR Action Group HC/AG-24. Shielding experiments were conducted in DLR’s Acoustic Wind tunnel in Braunschweig (AWB) using point and rotor sources. For the numerical simulation of the various test cases, DLR’s boundary element method was applied. The acoustic scattering predictions are compared to both test data and analytic solution.

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previous chapter Comparisons of Different Spatial Schemes and Limiters for Helicopter Flows
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Metadata
Title
Experimental and Numerical Study on Helicopter Acoustic Scattering
Authors
Jianping Yin
Karl-Stéphane Rossignol
Copyright Year
2021
Book
New Results in Numerical and Experimental Fluid Mechanics XIII

Print ISBN: 978-3-030-79560-3

Electronic ISBN: 978-3-030-79561-0

Copyright Year: 2021

DOI
https://doi.org/10.1007/978-3-030-79561-0_41

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