Abstract
Stationary oscillations of a simple flux‐type organ pipe have been studied. Internal acoustical pressure measurements in combination with modification of pipe geometry indicate that the sound source at the labium is a dipole. This observation is explained by Coltman's analysis [J. Acoust. Soc. Am. 60, 725–733 (1976)]. The jet oscillation observed by flow visualization is compared with theories by Cremer and Ising [Acustica 19, 144–153 (1967/68)] and Fletcher [Ann. Rev. Fluid Mech. 11, 123–146 (1979)]. Both theories lack a firm mathematical background; there are, however, no better theories available at the present time. Vortex shedding at the labium is observed in the course of the starting transient and for high‐blowing pressures during stationary oscillations. Theory indicates that these vortices can induce a significant nonlinear damping for stationary oscillations.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
