TY  - CONF
AU  - Schlottke-Lakemper, Michael
AU  - Cheng, Hsun-Jen
AU  - Pauz, Vitali
AU  - Meinke, Matthias H.
AU  - Schroeder, Wolfgang
TI  - A direct-hybrid method for computational aeroacoustics
M1  - FZJ-2016-00807
PY  - 2015
AB  - 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.
T2  - 21st AIAA/CEAS Aeroacoustics Conference
CY  - 22 Jun 2015 - 26 Jun 2015, Dallas, TX (USA)
Y2  - 22 Jun 2015 - 26 Jun 2015
M2  - Dallas, TX, USA
LB  - PUB:(DE-HGF)6
UR  - https://juser.fz-juelich.de/record/281102
ER  -