Incorporating the wind-chest reservoir and a foot model to the organ pipe time domain simulation - Archive ouverte HAL Access content directly
Conference Papers Year : 2022

Incorporating the wind-chest reservoir and a foot model to the organ pipe time domain simulation

Benoît Fabre

Abstract

It is not new to pursue a closed formulation of the organ pipe operation that leads to a feasible solution in time or frequency. Research contributions in the 1950s-60s reprised the question of the nature of the aero-acoustic sources in such instruments well after the Rayleigh-Helmholtz dispute. Said contributions marked and accelerated a progress line : from the simple resonator with passive radiating ends to the mouth impedance, its coupling with the volume upstream behind the formation point of the jet, plus its receptivity, instability, and convection. If one neglects all other less prominent contributions to sound, all those finally lead to a dipole-like source in the labium at the mouth of the pipe (inwards / outwards). Most of these mechanisms are common with flute-like instruments. The contribution presented here seeks to obtain greater realism and a more accurate description : the incorporation of the pipe foot, whose response is coupled upstream with the reservoir (the wind-chest in the real organ) and downstream with the window cut into the resonator. Measurements are compared with the simulation of the model with the same geometry and dimensions. The stress is put into analysing the effect that the reservoir and the foot have in the hydrodynamic system with and without the coupling of the resonator.
Fichier principal
Vignette du fichier
2022 Villegas Fabre 2022 -- Incorporating the wind-chest reservoir and a foot model to the organ pipe time domain simulation.pdf (1.28 Mo) Télécharger le fichier
Origin : Files produced by the author(s)

Dates and versions

hal-03838161 , version 1 (03-11-2022)

Identifiers

  • HAL Id : hal-03838161 , version 1

Cite

Gonzalo Villegas Curulla, Benoît Fabre. Incorporating the wind-chest reservoir and a foot model to the organ pipe time domain simulation. 16e Congrès Français d'Acoustique de la SFA (Société Française d'Acoustique ), Apr 2022, Marseille, France. ⟨hal-03838161⟩
30 View
12 Download

Share

Gmail Facebook X LinkedIn More