Extension of the Amiet theory for compact leading edge airfoil noise prediction

L. D. Santana, W. Desmet, C. Schram

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

1 Citation (Scopus)
15 Downloads (Pure)

Abstract

The Amiet theory is a semi-analytical methodology able to compute the airfoil noise, which is specially applicable to frequencies where the airfoil chord is comparable, or smaller, than the gust hydrodynamic wavelength and, consequently, the airfoil can be considered as a non-compact noise source. For lower frequencies, where the gust wavelength is comparable, or larger, than the airfoil chord, the Amiet theory overpredicts the airfoil noise. This paper discusses the effects of approximations made to the analytical methodology showing that they are partially responsible for the noise superestimation and proposes an iterative procedure of leading and trailing edge correction in order to improve the agreement of this theory with experimental data.

Original languageEnglish
Title of host publicationProceedings of ISMA 2014 - International Conference on Noise and Vibration Engineering and USD 2014 - International Conference on Uncertainty in Structural Dynamics
EditorsP. Sas, D. Moens, H. Denayer
PublisherKatholieke Universiteit Leuven
Pages289-299
Number of pages11
ISBN (Electronic)9789073802919
Publication statusPublished - 2014
Externally publishedYes
Event26th International Conference on Noise and Vibration Engineering, ISMA 2014 - Leuven, Belgium
Duration: 15 Sept 201417 Sept 2014
Conference number: 26
http://past.isma-isaac.be/isma2014

Conference

Conference26th International Conference on Noise and Vibration Engineering, ISMA 2014
Abbreviated titleISMA
Country/TerritoryBelgium
CityLeuven
Period15/09/1417/09/14
OtherHeld in Conjunction with the 5th International Conference on Uncertainty in Structural Dynamics (USD 2014)
Internet address

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