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@INBOOK{SchlottkeLakemper:866744,
      author       = {Schlottke-Lakemper, Michael and Klemp, Fabian and Cheng,
                      Hsun-Jen and Lintermann, Andreas and Meinke, Matthias and
                      Schröder, Wolfgang},
      title        = {{CFD}/{CAA} {S}imulations on {HPC} {S}ystems},
      address      = {Cham},
      publisher    = {Springer International Publishing},
      reportid     = {FZJ-2019-05813},
      pages        = {139-157},
      year         = {2016},
      comment      = {Sustained Simulation Performance 2016 / Resch, Michael M.
                      (Editor) ; Cham : Springer International Publishing, 2016,
                      Chapter 12 ; ISBN: 978-3-319-46734-4 ;
                      doi:10.1007/978-3-319-46735-1},
      booktitle     = {Sustained Simulation Performance 2016
                       / Resch, Michael M. (Editor) ; Cham :
                       Springer International Publishing,
                       2016, Chapter 12 ; ISBN:
                       978-3-319-46734-4 ;
                       doi:10.1007/978-3-319-46735-1},
      abstract     = {In this paper, a highly scalable numerical method is
                      presented that allows to compute the aerodynamic sound from
                      a turbulent flow field on HPC systems. A hybrid CFD-CAA
                      method is used to compute the flow and the acoustic field,
                      in which the two solvers are running in parallel to avoid
                      expensive I/O operations for the acoustic source terms.
                      Herein, the acoustic perturbation equations are solved by a
                      high-order discontinuous Galerkin scheme using the acoustic
                      source terms obtained from an approximate solution of the
                      Navier-Stokes equations. Both solvers run simultaneously and
                      operate on differently refined hierarchical Cartesian grids.
                      This direct-hybrid method is validated by monopole and
                      pressure pulse simulations and is used for performance
                      measurements on current HPC systems. The results highlight
                      the limitations of classic hybrid methods and show that the
                      new approach is suitable for highly parallel simulations.
                      Michael},
      pnm          = {511 - Computational Science and Mathematical Methods
                      (POF3-511)},
      pid          = {G:(DE-HGF)POF3-511},
      typ          = {PUB:(DE-HGF)7},
      doi          = {10.1007/978-3-319-46735-1_12},
      url          = {https://juser.fz-juelich.de/record/866744},
}