A hybrid method for CAA

Abstract

A scheme for computational aeroacoustic calculations on coupled structured and unstructured meshes for industrial applications is presented. Based on two sophisticated CAA solvers, one finite difference code for structured grids and one discontinuous Galerkin solver for unstructured grids, the described framework is able to combine the advantages of both grid types and thereby reduce the effort for simulations of aeroacoustics in complex structures. In this paper the underlying coupling mechanisms and the process management are described. Finally the operability and the ability to preserve the convergence order of the single schemes are shown. © 2010 Springer-Verlag Berlin Heidelberg.