At the Institute for Propulsion Technology of the German Aerospace Center (DLR), the parallel simulation system TRACE (Turbo-machinery Research Aerodynamic Computational Environment) has been developed specifically for the calculation of internal turbo-machinery flows. The finite volume approach with block-structured grids requires the parallel, iterative solution of large, sparse systems of linear equations. For convergence acceleration of the iteration, parallel preconditioners based on multi-level imcomplete factorizations have been investigated. Numerical and performance results of these methods will be presented for typical TRACE problems on parallel computer systems, including multi-core architectures.


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    Title :

    Parallel Preconditioning for Block-Structured CFD Problems


    Contributors:

    Conference:

    2009 ; Monterey Bay-Seaside, USA


    Publication date :

    2009-10-28


    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English




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