Abstract
Within the scope of this report, we discuss high-order CFD simulations on the HLRS CRAY XE6 cluster. Our discontinuous Galerkin based simulation framework is tailored for high performance computing aiming at solving large scale problems. We demonstrate and analyze the HPC capabilities of the framework for an unstructured grid and present Direct Numerical Simulations and Large Eddy Simulations of compressible unsteady and turbulent flows. The investigated cases include aeroacoustic sound generation on an airfoil, high-speed compressible turbulent boundary layer flow and decaying turbulence for LES modelling development. The simulations were performed on up to 8,000 cores on the CRAY XE6 cluster exploiting the high parallel efficiency of the code.
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Acknowledgements
The research presented in this paper was supported in parts by the Deutsche Forschungsgemeinschaft (DFG), amongst others within the Schwerpunktprogramm 1276: MetStroem and the Graduiertenkolleg 1095: Aero-Thermodynamic Design of a Scramjet Propulsion System for Future Space Transportation Systems and the research projects IDIHOM within the European Research Framework Programme, the Boysen Stiftung, Daimler AG, Audi AG and Robert Bosch GmbH. We truly appreciate the ongoing kind support by HLRS and CRAY in Stuttgart.
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Atak, M. et al. (2015). Discontinuous Galerkin for High Performance Computational Fluid Dynamics. In: Nagel, W., Kröner, D., Resch, M. (eds) High Performance Computing in Science and Engineering ‘14. Springer, Cham. https://doi.org/10.1007/978-3-319-10810-0_33
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DOI: https://doi.org/10.1007/978-3-319-10810-0_33
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