openCFS: Open Source Finite Element Software for Coupled Field Simulation -- Part Acoustics

Although many numerical simulation tools have been developed and are on the market, there is still a strong need for appropriate tools capable to simulate multi-field problems. Therefore, openCFS provides an open-source framework for implementing partial differential equations using the finite element method. Since 2000, the software has been developed continuously. The result of is openCFS (before 2020 known as CFS++ Coupled Field Simulations written in C++). In this paper, we present for the first time the open-source software with a focus on the acoustic module.