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- W17894265 abstract "Adaptive Mesh Coarsening using Interpolation Technique (AMCIT) was developed to combine highly adapted grids and massively parallel machines for the acceleration of flow field calculations. Special effort is required for appropriate load balancing strategies. Using the Intel Paragon on 64 nodes savings of a factor 3.4 for the rotating cylinder and of a factor 2.3 for the explosion problem are reached in comparison with the nonadaptive version of this method. This chapter presents AMCIT for the calculation of highly unsteady flows and for the reduction of computational costs. Based on a finite volume discretization on structured meshes, multiresolution algorithms are suggested depending on the local smoothness of the solution. It was distinguished that fluxes near discontinuities that have to be evaluated with a given complex upwinding scheme from those in smooth regions that can be interpolated. Instead of interpolating fluxes, a similar indicator can be used to decide which fraction of the computational domain can be reconstructed accurately from coarse grids. Furthermore, AMCIT was constructed for an efficient use of parallel machines, which requires special efforts in the development of a dynamic load balancing. The simulation of complex flow fields described by these conservation laws is one of the challenges for every computer generation. A special linearization strategy called Method of Transport (MoT) was developed to solve these systems numerically." @default.
- W17894265 created "2016-06-24" @default.
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- W17894265 date "1998-01-01" @default.
- W17894265 modified "2023-09-24" @default.
- W17894265 title "Dynamic Load Balancing for Adaptive Mesh Coarsening in Computational Fluid Dynamics" @default.
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- W17894265 doi "https://doi.org/10.1016/b978-044482849-1/50008-7" @default.
- W17894265 hasPublicationYear "1998" @default.
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