Towards large-scale acoustic shape optimization for industrial applications using the Boundary Element Method

Recent developments within the area of acoustic shape optimization show huge potential for the improvement and design of acoustic devices. So far, acoustic shape optimization has been mostly applied to simplified academic setups. However, its application to industrial sized problems is still limited. In this work, we explore the possibilities of extending current research on acoustic shape optimization based on the Boundary Element Method to large-scale acoustic setups. The e ciency of a recently proposed semi-analytical adjoint gradient estimation approach is investigated in the context of large problems. The adjoint approach is applied to optimize and evaluate the radiation performance of acoustic setups. Moreover, an important factor for successful shape optimization is how the geometry is allowed to deform, i.e., the choice of parametrization. This choice is especially di cult in the case of 3D problems. Therefore, the work will also explore different implementations of the parametrization of 3D surfaces.