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Prediction of installed jet noise

  • B. Lyu (a1), A. P. Dowling (a1) and I. Naqavi (a1)
Abstract

A semianalytical model for installed jet noise is proposed in this paper. We argue and conclude that there exist two distinct sound source mechanisms for installed jet noise, and the model is therefore composed of two parts to account for these different sound source mechanisms. Lighthill’s acoustic analogy and a fourth-order space–time correlation model for the Lighthill stress tensor are used to model the sound induced by the equivalent turbulent quadrupole sources, while the trailing-edge scattering of near-field evanescent instability waves is modelled using Amiet’s approach. A non-zero ambient mean flow is taken into account. It is found that, when the rigid surface is not so close to the jet as to affect the turbulent flow field, the trailing-edge scattering of near-field evanescent waves dominates the low-frequency amplification of installed jet noise in the far-field. The high-frequency noise enhancement on the reflected side is due to the surface reflection effect. The model agrees well with experimental results at different observer angles, apart from deviations caused by the mean-flow refraction effect at high frequencies at low observer angles.

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Corresponding author
Email address for correspondence: bl362@cam.ac.uk
References
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R. K. Amiet 1975 Acoustic radiation from an airfoil in a turbulent stream. J. Sound Vib. 41 (4), 407420.

R. K. Amiet 1976a High frequency thin-airfoil theory for subsonic flow. AIAA J. 14 (8), 10761082.

R. K. Amiet 1976b Noise due to turbulent flow past a trailing edge. J. Sound Vib. 47 (3), 387393.

R. K. Amiet 1978 Effect of the incident surface pressure field on noise due to turbulent flow past a trailing edge. J. Sound Vib. 57, 305306.

R. Arndt , D. F. Long  & M. N. Glauser 1997 The proper orthogonal decomposition of pressure fluctuations surrounding a turbulent jet. J. Fluid Mech. 340, 133.

C. Bailly , S. Candel  & P. Lafon 1996 Prediction of supersonic jet noise from a statistical acoustic model and a compressible turbulence closure. J. Sound Vib. 194, 219242.

W. Béchara , P. Lafon , C. Bailly  & S. M. Candel 1995 Application of a k-𝜖 turbulence model to the prediction of noise for simple and coaxial jets. J. Acoust. Soc. Am. 97 (6), 35183531.

T. R. S. Bhat  & A. M. Blackner 1998 Installed jet noise prediction model for coaxial jets. In Proceedings of 36th AIAA Aerospace Sciences Meeting and Exhibit, Reno, NV. AIAA Paper 98-79.

J. Bridges  & M. P. Wernet 2010 Establishing consensus turbulence statistics for hot subsonic jets. In Proceedings of 16th AIAA/CEAS Aeroacoustic Conference, Stockholm. AIAA Paper 2010-3751.

C. A. Brown 2013 Jet-surface interaction test: far-field noise results. Trans. ASME J. Engng Gas Turbines Power 135 (7), 71201.

K. Bushell 1975 Measurement and prediction of jet noise in flight. In Proceedings of 2nd Aeroacoustics Conference, Hampton, VA. AIAA Paper 75-461.

O. P. Bychkov  & G. A. Faranosov 2014 On the possible mechanism of the jet noise intensification near a wing. Acoust. Phys. 60 (6), 633646.

N. Curle 1955 The influence of solid boundaries upon aerodynamic sound. Proc. R. Soc. Lond A 231, 505514.

M. J. Fisher , M. Harper-Bourne  & S. A. L. Glegg 1977 Jet engine noise source location: the polar correlation technique. J. Sound Vib. 51, 2354.

M. E. Goldstein 2003 A generalized acoustic analogy. J. Fluid Mech. 488, 315333.

K. Gudmundsson  & T. Colonius 2011 Instability wave models for the near-field fluctuations of turbulent jets. J. Fluid Mech. 689, 97128.

A. Jameson 2008 Formulation of kinetic energy preserving conservative schemes for gas dynamics and direct numerical simulation of one-dimensional viscous compressible flow in a shock tube using entropy and kinetic energy preserving schemes. J. Sci. Comput. 34 (2), 188208.

P. Jordan  & T. Colonius 2013 Wave packets and turbulent jet noise. Annu. Rev. Fluid Mech. 45, 173195.

S. A. Karabasov , M. Z. Afsar , T. P. Hynes , A. P. Dowling , W. A. McMullan , C. D. Pokora , G. J. Page  & J. J. McGuirk 2010 Jet noise: acoustic analogy informed by large eddy simulation. AIAA J. 48 (7), 13121325.

F. Kerhervé , J. Fitzpatick  & P. Jordan 2006 The frequency dependence of jet turbulence for noise source modelling. J. Sound Vib. 296, 209225.

A. Khavaran , E. A. Krejsa  & C. M. Kim 1994 Computation of supersonic jet mixing noise for an axisymmetric convergent-divergent nozzle. J. Aircraft 31 (5), 603609.

B. E. Launder  & D. B. Spalding 1974 The numerical computation of turbulent flows. Comput. Meth. Appl. Mech. Engng 3, 269289.

M. J. Lighthill 1952 On sound generated aerodynamically. I. General theory. Proc. R. Soc. Lond A 211 (1107), 564587.

M. J. Lighthill 1954 On sound generated aerodynamically. II. Turbulence as a source of sound. Proc. R. Soc. Lond A 222, 132.

B. Lyu , M. Azarpeyvand  & S. Sinayoko 2015 A trailing-edge noise model for serrated edges. In Proceedings of 21st AIAA/CEAS Aeroacoustics Conference, Dallas, TX. AIAA Paper 2015-2362.

B. Lyu , M. Azarpeyvand  & S. Sinayoko 2016 Noise prediction for serrated trailing edges. J. Fluid Mech. 793, 556588.

B. Lyu  & A. P. Dowling 2016 Noise prediction for installed jets. In Proceedings of 22nd AIAA/CEAS Aeroacoustics Conference, Lyon, France. AIAA Paper 2016-2986.

C. Mead  & P. Strange 1998 Under-wing installation effects on jet noise at sideline. In Proceedings of 4th AIAA/CEAS Aeroacoustics Conference, Toulouse, France. AIAA Paper 98-2207.

I. Z. Naqavi , Z.-N. Wang , P. G. Tucker , M. Mahak  & P. Strange 2016 Far-field noise prediction for jets using large-eddy simulation (LES) and Ffowcs Williams-Hawkings (FW-H) method. Intl J. Aeroacoust. 15 (8), 757780.

N. N. Pastouchenko  & C. K. W. Tam 2007 Installation effects on the flow and noise of wing mounted jets. AIAA J. 45 (12), 28512860.

C. B. Pepper , M. A. Nascarella  & R. J. Kendall 2003 A review of the effects of aircraft noise on wildlife and humans, current control mechanisms, and the need for further study. Environ. Manage. 32, 3024.

S. Piantanida , V. Jaunet , J. Huber , W. Wolf , P. Jordan  & A. V. G. Cavalieri 2015 Scattering of turbulent-jet wavepackets by a swept trailing edge. In Proceedings of 21st AIAA/CEAS Aeroacoustic Conference, Dallas, TX. AIAA Paper 2015-2998.

M. Roger  & S. Moreau 2005 Back-scattering correction and further extensions of Amiet’s trailing-edge noise model. Part 1: theory. J. Sound Vib. 286 (1–2), 477506.

C. K. W. Tam  & L. Auriault 1999 Jet mixing noise from fine-scale turbulence. AIAA J. 37 (2), 145153.

C. E. Tinney , M. N. Glauser  & L. S. Ukeiley 2008a Low-dimensional characteristics of a transonic jet. Part 1. Proper orthogonal decomposition. J. Fluid Mech. 612, 107141.

C. E. Tinney  & P. Jordan 2008 The near pressure field of co-axial subsonic jets. J. Fluid Mech. 611, 175204.

C. E. Tinney , L. S. Ukeiley  & M. N. Glauser 2008b Low-dimensional characteristics of a transonic jet. Part 2. Estimate and far-field prediction. J. Fluid Mech. 615, 5392.

J. Vera , R. H. Self  & M. J. Kingan 2015 The prediction of the radiated pressure spectrum produced by jet-wing interaction. In Proceedings of 21st AIAA/CEAS Aeroacoustic Conference, Dallas, TX. AIAA Paper 2015-2216.

M. Wang 1981 Wing effect on jet noise propagation. J. Aircraft 18, 295302.

F. M. White 2005 Fluid Mechanics, 5th edn. McGraw-Hill.

J. E. F. Williams 1963 The noise from turbulence convected at high speed. Phil. Trans. R. Soc. Lond. A 255, 469503.

J. E. F. Williams  & L. H. Hall 1970 Aerodynamic sound generation by turbulent flow in the vicinity of a scattering half plane. J. Fluid Mech. 40, 657670.

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