Abstract
Flow visualizations of the jet formation during the initial phase of the attack transient in a flue organ pipe are presented. These visualizations are related to acoustical pressure measurements inside the pipe. This acoustical response appears to be extremely sensitive to the steepness of the rise of the supply pressure in the foot of the pipe. A fast pressure rise implies not only a strong initial pressure buildup due to the volume injection, it also results in an impulsive vortex shedding at the labium when the jet reaches this sharp edge. For a slow pressure rise the initial response is considerably smaller and the jet is so strongly deflected outwards that it initially misses the labium. These observations are analysed and related to the effect of the labium position and to the use of ears on the attack transient of organ pipes.
This is a preview of subscription content, log in via an institution to check access.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Preview
Unable to display preview. Download preview PDF.
References
Angster, J. & A. Miklos. 1989. New developments on the understanding of the buildup of organ sounds. In 13th Int. Congress on Acoustics, Belgrade.
Castellengo, M. 1976. Contribution à l’étude expérimentale des tuyaux à bouche. PhD thesis, Université de Paris VI, Paris, France.
Coltman, J. 1968. Sounding mechanism of the flute and organ pipe. J. Acoust. Soc. Arn. 44(4):983–992.
Fabre, B. 1992. La Production de Son dans les Instruments à Embouchure de Flûte: Modèle Aéro-acoustique pour la Simulation Temporelle. PhD thesis, Université du Maine, Le Mans, France.
Fletcher, N. 1976. Transients in the speech of organ flue pipes — a theoretical study. Acustica 34:224–233.
Fletcher, N. & T. Rossing. 1991. The Physics of Musical Instruments. New-York: Springer-Verlag.
Krasny, R. 1987. Computation of vortex sheet roll-up in the Trefftz plane. J. Fluid Mech. 184:123–155.
Nolle, A. & T. Finch. 1992. Starting transients of flue organ pipes in relation to pressure rise time. J. Acoust. Soc. Am. 91(4):2190–2202.
Verge, M., B. Fabre, W. Mahu, A. Hirschberg, R. van Hassel, A. Wijnands, J.J. DE Vries & C.J. Hogendoorn. 1993. Jet formation and jet velocity fluctuations in a flue organ pipe. Submitted to J. Acoust. Soc. Am.
Author information
Authors and Affiliations
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 1993 Springer Science+Business Media Dordrecht
About this chapter
Cite this chapter
Mahu, W.E.A., Peters, M.C.A.M., Verge, MP., Wijnands, A.P.J., Fabre, B., Hirschberg, A. (1993). Attack transient of a flue organ pipe. In: Dijksman, J.F., Nieuwstadt, F.T.M. (eds) Topics in Applied Mechanics. Springer, Dordrecht. https://doi.org/10.1007/978-94-011-2090-6_17
Download citation
DOI: https://doi.org/10.1007/978-94-011-2090-6_17
Publisher Name: Springer, Dordrecht
Print ISBN: 978-94-010-4926-9
Online ISBN: 978-94-011-2090-6
eBook Packages: Springer Book Archive