A series of unsteady CFD simulations have been conducted for an isolated propeller configuration at lowspeed flight conditions using both a structured and an unstructured CFD method. The propeller geometry investigated is representative of a modern eight-bladed design for high-speed turboprop transport aircraft. Two typical low-speed conditions, one at zero and one at ten degrees angle of attack, were investigated and results of the two CFD methods compared with experimental data obtained from a wind tunnel test campaign. The computations were performed with the DLR FLOWer and TAU-codes respectively and employed Chimera grids, which enable the modelling of multiple rigid bodies in relative motion. The results of Euler and Navier-Stokes computations show good agreement with the available wake data measured in the wind tunnel. Additionally, a detailed analysis of the forces acting on the blades and the propeller is performed, which show a strong influence of the propeller angle of attack.


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    Titel :

    Unsteady Simulation of a Transport Aircraft Propeller Using MEGAFLOW


    Beteiligte:
    A. Stuermer (Autor:in) / M. Rakowitz (Autor:in)

    Erscheinungsdatum :

    2005


    Format / Umfang :

    15 pages


    Medientyp :

    Report


    Format :

    Keine Angabe


    Sprache :

    Englisch




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