3rd French conference on acoustics
J. Phys. IV France 04 (1994) C5-955-C5-958
Calcul du bruit de jet par une approche semi-déterministeF. BASTIN1, Ph. LAFON2 and S. CANDEL3
1 SNECMA, Département YKV, Centre de Villaroche, 77550 Moissy-Cramayel, France
2 EDF/DER, 1 avenue du Général de Gaulle, 92141 Clamart cedex, France
3 Ecole Centrale de Paris, Laboratoire EM2C, 92295 Châtenay-Malabry cedex, France
The whole proceeding of the evaluation of turbulent jet noise with Lighthill formulation from large scale instationnary aerodynamic data is presented. The basic case of the two-dimensional shear layer is completely studied and the main features of the method are established. The far field acoustic fluctuations show a satisfying spectral contents and the directivity can be compared to what is observed for subsonic jets. The first aerodynamic data of the plane jet are also presented. They should allow more precise acoustic validations before the more realistic case of the axisymmetrical jet.
© EDP Sciences 1994