The need to account for momentum and energy transport by the unsteady deterministic flow field in modeling the time-averaged flow state within a blade row passage embedded in a multistage compressor is assessed. It was found that, within the endwall regions, large-scale three-dimensional unsteady structures existed which caused significant transport of momentum and energy across the time-averaged stream surface of a stator flow field. These experiments confirmed that the tranport process is dominated by turbulent diffusion in the midspan region. A model was then proposed for simulating this transport process, and a limited study was undertaken to assess its validity.


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    Title :

    The numerical simulation of multistage turbomachinery flows


    Contributors:


    Publication date :

    1990-02-01


    Type of media :

    Conference paper


    Type of material :

    No indication


    Language :

    English




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