Acoustic Finite Element Analysis of a Slit Model with Consideration of Air Viscosity
| Main Authors: | M. Sasajima, M. Watanabe, T. Yamaguchi Y. Kurosawa, Y. Koike |
|---|---|
| Format: | Article |
| Bahasa: | eng |
| Terbitan: |
, 2013
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| Subjects: | |
| Online Access: |
https://zenodo.org/record/1089050 |
Daftar Isi:
- In very narrow pathways, the speed of sound propagation and the phase of sound waves change due to the air viscosity. We have developed a new finite element method (FEM) that includes the effects of air viscosity for modeling a narrow sound pathway. This method is developed as an extension of the existing FEM for porous sound-absorbing materials. The numerical calculation results for several three-dimensional slit models using the proposed FEM are validated against existing calculation methods.