The integrated multi-disziplinary process of combat aircraft design, which should bring forth shapes optimised performance-, handling- and mission-wise demand high quality results at minimum turn-around times. The proper evaluation of the aerodynamic shapes and their flow structure results allows favourable blends of performance and the efficient aero-servo-elastic layout. Soaring physical and technical demands call for the close coupling of aerodynamics, flight-mechanics, flight-controls and structures. The computational demands of this complex approach is heavily dominated by the integration of quality Navier-Stokes simulations which rapidly and routinely can be performed only in a parallel approach. The efficiency of modern PC-clusters can be exploited even to allow for time-dependent simulations. A corresponding simulation system architecture and software (SimServer) capable to provide the complete blend of aero-servo-elastic simulations has to comply to the corresponding distributed memory architecture. The efficient meshing of complex aircraft is a vital part in high quality numerical simulations. The generation, adaptation and modification of unstructured numerical meshes is of utmost importance to comply with a difficult geometry, non-linear flow features and changing multi-body configurations. While rigid aircraft can be handled in a process chain of loosely coupled tools, tightly coupled aero-servo-elastic simulations demand the incorporation of the mesh-generation into the simulation system run in parallel side by side with the solver in the SimServer. The efficiency of which implies a very automatic, robust and efficient re-configuration of aircraft components (e.g. controls and stores), their local re-meshing and the mesh-adaptation to flow features. The unsteady integration of non-slotted controls such as manoeuvre slats has not been performed yet. The demands on mesh-generation regarding quality and performance with hindsight to an efficient simulation system environment to be used on a routine basis is discussed.


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    Titel :

    Complex configuration meshing - an industrial view and approach


    Weitere Titelangaben:

    Vernetzung komplexer Systeme - aus industrieller Sicht und Anwendung


    Beteiligte:
    Hitzel, S.M. (Autor:in) / Tremel, U. (Autor:in) / Deister, F. (Autor:in) / Rieger, H. (Autor:in)


    Erscheinungsdatum :

    2003


    Format / Umfang :

    9 Seiten, 21 Bilder, 7 Quellen



    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




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