Conference Presentation (Other)

FZJ-2016-00807

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png A direct-hybrid method for computational aeroacoustics

Schlottke-Lakemper, M. (Corresponding author)FZJ* ; Cheng, H.-J. ; Pauz, V. ; Meinke, M. H. ; Schroeder, W.

2015

Abstract: In this work, a highly scalable numerical method is presented that allows to compute the aerodynamic sound from the flow field for large-scale problems. The acoustic perturbation equations are solved by a high-order discontinuous Galerkin method and by using the acoustic source terms obtained from an approximate solution of the Navier-Stokes equations. Both solvers operate on the same hierarchical Cartesian grid. This direct-hybrid method is validated by monopole and pressure pulse simulations and is used to compute the aeroacoustics of a turbulent mixing layer. The results indicate that the new method is capable of efficiently predicting the acoustic field and show that it is suitable for highly parallel simulations.

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Contributing Institute(s):

1. Jülich Supercomputing Center (JSC)
2. JARA - HPC (JARA-HPC)

Research Program(s):

1. 511 - Computational Science and Mathematical Methods (POF3-511) (POF3-511)

Appears in the scientific report 2015

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