Open Science Research Excellence

T Yamaguchi Y Kurosawa

Publications

1

Publications

1
9996581
Acoustic Finite Element Analysis of a Slit Model with Consideration of Air Viscosity
Abstract:

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.

Keywords:
Simulation, FEM, air viscosity, slit.