A comphrehensive model for the amplification of acoustic pressure waves by single hole orifices

P. Moussou; Ph. Testud; Y. Auregan; A. Hirschberg

A comphrehensive model for the amplification of acoustic pressure waves by single hole orifices

P. Moussou
, Ph. Testud
, Y. Auregan
, A. Hirschberg

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

Abstract

Using a parallel flow approximation, a simple model of hydrodynamic instability is proposed for describing the behavior of an orifice as an acoustic amplifier. It is shown that the growing of perturbations in the vena contracta can generate negative damping for Strouhal numbers of the order of 0.2-0.5. Experimental data are provided to support the modelization: a qualitative agreement is obtained.

Original language	English
Title of host publication	Proceedings of the 9th International Conference on Flow-Induced Vibration (FIV2008, Prague, Czech Republik, June 30-July 3 2008)
Volume	1
Publication status	Published - 2008
Event	conference; 9th International Conference on Flow-Induced Vibration; 2008-06-30; 2008-07-03 - Duration: 30 Jun 2008 → 3 Jul 2008

Conference

Conference	conference; 9th International Conference on Flow-Induced Vibration; 2008-06-30; 2008-07-03
Period	30/06/08 → 3/07/08
Other	9th International Conference on Flow-Induced Vibration

Cite this

@inproceedings{01ad6b24bdc846f79ed79c675bf604aa,

title = "A comphrehensive model for the amplification of acoustic pressure waves by single hole orifices",

abstract = "Using a parallel flow approximation, a simple model of hydrodynamic instability is proposed for describing the behavior of an orifice as an acoustic amplifier. It is shown that the growing of perturbations in the vena contracta can generate negative damping for Strouhal numbers of the order of 0.2-0.5. Experimental data are provided to support the modelization: a qualitative agreement is obtained.",

author = "P. Moussou and Ph. Testud and Y. Auregan and A. Hirschberg",

year = "2008",

language = "English",

volume = "1",

booktitle = "Proceedings of the 9th International Conference on Flow-Induced Vibration (FIV2008, Prague, Czech Republik, June 30-July 3 2008)",

note = "conference; 9th International Conference on Flow-Induced Vibration; 2008-06-30; 2008-07-03 ; Conference date: 30-06-2008 Through 03-07-2008",

}

Moussou, P, Testud, P, Auregan, Y & Hirschberg, A 2008, A comphrehensive model for the amplification of acoustic pressure waves by single hole orifices. in Proceedings of the 9th International Conference on Flow-Induced Vibration (FIV2008, Prague, Czech Republik, June 30-July 3 2008). vol. 1, conference; 9th International Conference on Flow-Induced Vibration; 2008-06-30; 2008-07-03, 30/06/08.

A comphrehensive model for the amplification of acoustic pressure waves by single hole orifices. / Moussou, P.; Testud, Ph.; Auregan, Y. et al.
Proceedings of the 9th International Conference on Flow-Induced Vibration (FIV2008, Prague, Czech Republik, June 30-July 3 2008). Vol. 1 2008.

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

TY - GEN

T1 - A comphrehensive model for the amplification of acoustic pressure waves by single hole orifices

AU - Moussou, P.

AU - Testud, Ph.

AU - Auregan, Y.

AU - Hirschberg, A.

PY - 2008

Y1 - 2008

N2 - Using a parallel flow approximation, a simple model of hydrodynamic instability is proposed for describing the behavior of an orifice as an acoustic amplifier. It is shown that the growing of perturbations in the vena contracta can generate negative damping for Strouhal numbers of the order of 0.2-0.5. Experimental data are provided to support the modelization: a qualitative agreement is obtained.

AB - Using a parallel flow approximation, a simple model of hydrodynamic instability is proposed for describing the behavior of an orifice as an acoustic amplifier. It is shown that the growing of perturbations in the vena contracta can generate negative damping for Strouhal numbers of the order of 0.2-0.5. Experimental data are provided to support the modelization: a qualitative agreement is obtained.

M3 - Conference contribution

VL - 1

BT - Proceedings of the 9th International Conference on Flow-Induced Vibration (FIV2008, Prague, Czech Republik, June 30-July 3 2008)

T2 - conference; 9th International Conference on Flow-Induced Vibration; 2008-06-30; 2008-07-03

Y2 - 30 June 2008 through 3 July 2008

ER -

A comphrehensive model for the amplification of acoustic pressure waves by single hole orifices

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