Engineering and Computational Mathematics

High-frequency Simulation Technology of Car Cockpit Sound Field

The noise control of the sound field in the cabin is very important to the comfort of passengers, and to a large extent depends on the successful numerical simulation of the high-frequency sound field. In this project, new cutting-edge computational methods are developed for the numerical simulation of the cabin sound field in industrial automobile manufacturing.

The time-harmonic sound field in a car cabin is typically described by the solution of the Helmholtz equation. The numerical solution of the Helmholtz equation with large wave number is still a computational challenge nowadays. The objective of this project is to develop new cutting-edge computational technology that can be used in the numerical simulation of the cabin sound field for industrial automobile manufacturing. The interior penalty finite element method and high-order finite elements will be utilized, with new techniques to select the penalty parameters to significantly improve the computational performance of three-dimensional simulation.

Sound pressure level