Quasisteady aero-acoustic response of orifices.

@article{Durrieu2001QuasisteadyAR,
  title={Quasisteady aero-acoustic response of orifices.},
  author={P. Durrieu and G. Hofmans and G. Ajello and R. Boot and Y. Aur{\'e}gan and A. Hirschberg and M. Peters},
  journal={The Journal of the Acoustical Society of America},
  year={2001},
  volume={110 4},
  pages={
          1859-72
        }
}
The low frequency response of orifices (slit, circular diaphragm, and perforated plate) in the presence of mean flow is well predicted by a quasisteady theory. A refinement is brought to the theory by considering a Mach number dependent vena contracta coefficient. The measurements of the vena contracta coefficient of a slit agree well with the simple analytical expression existing in the case of the Borda tube orifice. The measured scattering matrix coefficients do not depend strongly on the… Expand
Jet forking driven by pipe tone.
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