High speed jet noise simulations

Philip John Morris, Lyle Norman Long, Thomas E. Scheidegger, Qunzhen Wang, Anthony R. Pilon

Research output: Contribution to conferencePaper

10 Citations (Scopus)

Abstract

Numerical simulations are presented for both circular and rectangular supersonic jets. The predictions are based on solutions of the nonlinear disturbance equations. The simulations are implemented on parallel computers. Details of the numerical method including the discretization, boundary treatment, grid generation and turbulence model are given. Predictions are made of both the flow perturbations and the radiated noise. The radiated noise is predicted using both a direct simulation and a Kirchhoff method. Good agreement is obtained between the two techniques. Comparisons are made with experimental measurements. The simulations over predict the sound pressure levels by 4 to 5 dB. This is a consistent over prediction for all the operating conditions considered: but, the relative changes are predicted well.

Original languageEnglish (US)
DOIs
StatePublished - Jan 1 1998
Event4th AIAA/CEAS Aeroacoustics Conference, 1998 - Toulouse, France
Duration: Jun 2 1998Jun 4 1998

Other

Other4th AIAA/CEAS Aeroacoustics Conference, 1998
CountryFrance
CityToulouse
Period6/2/986/4/98

Fingerprint

Turbulence models
Numerical methods
Acoustic waves
Computer simulation

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering
  • Aerospace Engineering

Cite this

Morris, P. J., Long, L. N., Scheidegger, T. E., Wang, Q., & Pilon, A. R. (1998). High speed jet noise simulations. Paper presented at 4th AIAA/CEAS Aeroacoustics Conference, 1998, Toulouse, France. https://doi.org/10.2514/6.1998-2290
Morris, Philip John ; Long, Lyle Norman ; Scheidegger, Thomas E. ; Wang, Qunzhen ; Pilon, Anthony R. / High speed jet noise simulations. Paper presented at 4th AIAA/CEAS Aeroacoustics Conference, 1998, Toulouse, France.
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Morris, PJ, Long, LN, Scheidegger, TE, Wang, Q & Pilon, AR 1998, 'High speed jet noise simulations' Paper presented at 4th AIAA/CEAS Aeroacoustics Conference, 1998, Toulouse, France, 6/2/98 - 6/4/98, . https://doi.org/10.2514/6.1998-2290

High speed jet noise simulations. / Morris, Philip John; Long, Lyle Norman; Scheidegger, Thomas E.; Wang, Qunzhen; Pilon, Anthony R.

1998. Paper presented at 4th AIAA/CEAS Aeroacoustics Conference, 1998, Toulouse, France.

Research output: Contribution to conferencePaper

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AU - Morris, Philip John

AU - Long, Lyle Norman

AU - Scheidegger, Thomas E.

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AU - Pilon, Anthony R.

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AB - Numerical simulations are presented for both circular and rectangular supersonic jets. The predictions are based on solutions of the nonlinear disturbance equations. The simulations are implemented on parallel computers. Details of the numerical method including the discretization, boundary treatment, grid generation and turbulence model are given. Predictions are made of both the flow perturbations and the radiated noise. The radiated noise is predicted using both a direct simulation and a Kirchhoff method. Good agreement is obtained between the two techniques. Comparisons are made with experimental measurements. The simulations over predict the sound pressure levels by 4 to 5 dB. This is a consistent over prediction for all the operating conditions considered: but, the relative changes are predicted well.

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Morris PJ, Long LN, Scheidegger TE, Wang Q, Pilon AR. High speed jet noise simulations. 1998. Paper presented at 4th AIAA/CEAS Aeroacoustics Conference, 1998, Toulouse, France. https://doi.org/10.2514/6.1998-2290