Abstract
Predicting high frequency sound field in a cabin of a car is essential for efficient acoustic design of noise reduction, but difficult because it's a large scale problem. In this paper, as the first step of study on numerical analysis of high frequency sound field in a cabin, fast multipole boundary element method (FMBEM) which has been developed as technique to reduce the computational time for large scale problems is applied to simulation of sound field in a simplified cabin model, and its availability is examined through comparison with computed result by BEM.
