Duct Acoustics

Basic Theory

1. duct acoustic fundamentals
2. bsiac green function
3. duct mode detect
4. Extend:NonlinearDuctAcoustics
5. Extend:Winer-Hopf
6. Extend learning: cascade-scattering

Swirl duct acoustic

• Aim: Reproduce the Green function in swirl duct using collocation method.
• Ref: James Mathews-GreenSwirl-PhD thesis.
• Reqiure: add Chebfun in to subpackage; tecplot for visulization.

Results:

CaseName	Link	Info
01	monopole.gif
02	dipole.gif
03	rotatingNoise.gif	Reverse-recording
04	shellVibration.gif	Zoom in the Deformation effect
05	Gw.gif
06	Tw1.gif
07	Tw2.gif
08	Tw3.gif