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

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

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 proceeding › Conference contribution › Academic › peer-review

1 Citation (Scopus)

77 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 language	English
Title of host publication	Proceedings of ISMA 2014 - International Conference on Noise and Vibration Engineering and USD 2014 - International Conference on Uncertainty in Structural Dynamics
Editors	P. Sas, D. Moens, H. Denayer
Publisher	Katholieke Universiteit Leuven
Pages	289-299
Number of pages	11
ISBN (Electronic)	9789073802919
Publication status	Published - 2014
Externally published	Yes
Event	26th International Conference on Noise and Vibration Engineering, ISMA 2014 - Leuven, Belgium Duration: 15 Sept 2014 → 17 Sept 2014 Conference number: 26 http://past.isma-isaac.be/isma2014

Conference

Conference	26th International Conference on Noise and Vibration Engineering, ISMA 2014
Abbreviated title	ISMA
Country/Territory	Belgium
City	Leuven
Period	15/09/14 → 17/09/14
Other	Held in Conjunction with the 5th International Conference on Uncertainty in Structural Dynamics (USD 2014)
Internet address	http://past.isma-isaac.be/isma2014

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Santana, L. D., Desmet, W., & Schram, C. (2014). Extension of the Amiet theory for compact leading edge airfoil noise prediction. In P. Sas, D. Moens, & H. Denayer (Eds.), Proceedings of ISMA 2014 - International Conference on Noise and Vibration Engineering and USD 2014 - International Conference on Uncertainty in Structural Dynamics (pp. 289-299). Katholieke Universiteit Leuven.

Santana, L. D. ; Desmet, W. ; Schram, C. / Extension of the Amiet theory for compact leading edge airfoil noise prediction. Proceedings of ISMA 2014 - International Conference on Noise and Vibration Engineering and USD 2014 - International Conference on Uncertainty in Structural Dynamics. editor / P. Sas ; D. Moens ; H. Denayer. Katholieke Universiteit Leuven, 2014. pp. 289-299

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title = "Extension of the Amiet theory for compact leading edge airfoil noise prediction",

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.",

author = "Santana, {L. D.} and W. Desmet and C. Schram",

year = "2014",

language = "English",

pages = "289--299",

editor = "P. Sas and D. Moens and H. Denayer",

booktitle = "Proceedings of ISMA 2014 - International Conference on Noise and Vibration Engineering and USD 2014 - International Conference on Uncertainty in Structural Dynamics",

publisher = "Katholieke Universiteit Leuven",

note = "26th International Conference on Noise and Vibration Engineering, ISMA 2014, ISMA ; Conference date: 15-09-2014 Through 17-09-2014",

url = "http://past.isma-isaac.be/isma2014",

}

Santana, LD, Desmet, W & Schram, C 2014, Extension of the Amiet theory for compact leading edge airfoil noise prediction. in P Sas, D Moens & H Denayer (eds), Proceedings of ISMA 2014 - International Conference on Noise and Vibration Engineering and USD 2014 - International Conference on Uncertainty in Structural Dynamics. Katholieke Universiteit Leuven, pp. 289-299, 26th International Conference on Noise and Vibration Engineering, ISMA 2014, Leuven, Belgium, 15/09/14.

Extension of the Amiet theory for compact leading edge airfoil noise prediction. / Santana, L. D.; Desmet, W.; Schram, C.
Proceedings of ISMA 2014 - International Conference on Noise and Vibration Engineering and USD 2014 - International Conference on Uncertainty in Structural Dynamics. ed. / P. Sas; D. Moens; H. Denayer. Katholieke Universiteit Leuven, 2014. p. 289-299.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review

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N2 - 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.

AB - 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.

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AN - SCOPUS:84913553212

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EP - 299

BT - Proceedings of ISMA 2014 - International Conference on Noise and Vibration Engineering and USD 2014 - International Conference on Uncertainty in Structural Dynamics

A2 - Sas, P.

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PB - Katholieke Universiteit Leuven

T2 - 26th International Conference on Noise and Vibration Engineering, ISMA 2014

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ER -

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

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