The drive towards high-work turbines has led to designs which can be compact, transonic, supersonic, counter rotating, or use a dense drive gas. These aggressive designs can lead to strong unsteady secondary flows and flow separation. The amplitude and extent of these unsteady flow phenomena can be amplified at off-design operating conditions. Pre-test off-design predictions have been performed for a new two-stage supersonic turbine design that is currently being tested in air. The simulations were performed using a three-dimensional unsteady Navier-Stokes analysis, and the predicted results have been compared with solutions from a validated meanline analysis.


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    Title :

    Off-Design Performance of a Multi-Stage Supersonic Turbine


    Contributors:

    Conference:

    41st Aerospace Sciences Meeting and Exhibit ; 2003 ; Reno, NV, United States


    Publication date :

    2003-01-01


    Type of media :

    Preprint


    Type of material :

    No indication


    Language :

    English




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