Discontinuous Galerkin for High Performance Computational Fluid Dynamics
In this report we present selected simulations performed on the HLRS clusters. Our simulation framework is based on the Discontinuous Galerkin method and consists of four different codes, each of which is developed with a distinct focus. All of those codes are written with a special emphasis on (MPI) based high performance computing. In this report, we show results of our newest code, FLEXI, which is tailored solely towards high performance computing of three dimensional advection dominated problems. Currently, we are interested in extending our direct numerical simulation framework to large eddy simulations and present computations and comparisons of our framework for the flow past a cylinder and the flow past a wing. Furthermore, first results on a MPI based multi-physics extension of our framework is presented. All simulations are typically performed on hundreds and thousands of CPU cores.
KeywordsLarge Eddy Simulation Polynomial Degree Discontinuous Galerkin Suction Side Discontinuous Galerkin Method
The research presented in this paper was supported in parts by Deutsche Forschungsgemeinschaft (DFG), amongst others within the Schwerpunktprogramm 1276: MetStroem and the Graduiertenkolleg 1095: Aerothermodynamische Auslegung eines Scramjet-Antriebssystems für zukünftige Raumtransportsysteme and the research projects IDIHOM within the European Research Framework Programme.
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