Issue
J. Phys. IV France
Volume 04, Number C5, Mai 1994
3ème Congrés français d'acoustique
3rd French conference on acoustics
Page(s) C5-661 - C5-664
DOI https://doi.org/10.1051/jp4:19945143
3ème Congrés français d'acoustique
3rd French conference on acoustics

J. Phys. IV France 04 (1994) C5-661-C5-664

DOI: 10.1051/jp4:19945143

Oscillation du jet dans les instruments à embouchure de flûte : recherche d'un modèle analytique

M.P. VERGE1, B. FABRE2, R. CAUSSÉ1, A. HIRSCHBERG3 and A. VAN STEENBERGEN3

1  IRCAM, 1 Place Igor Stravinsky, 75004 Paris, France
2  Laboratoire d'Acoustique Musicale, UMR 9945, CNRS, Université de Paris VI et Ministère de la Culture, Tour 66, Place Jussieu, 75252 Paris, France
3  Technische Universiteit Eindhoven, W&S 0.54, Postbus 513, 5600 MB Eindhoven, The Netherlands


Abstract
In this paper, we present a model of the oscillations of a semi-infinite jet that could be used for time-domain simulations of flute-like musical instruments. We first calculate the spatial amplification coefficient of an infinite jet for different piecewise linear velocity profiles. We then present a receptivity model that enables to link the oscillations modes of an infinite jet to the flow at the jet formation points when a transversal acoustic field is applied. These results are then used to calculate the displacement of a jet having a top-hat velocity profile for which our receptivity model seems to be well adapted.



© EDP Sciences 1994