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    A stage-by-stage post-stall compression system modeling technique: methodology, validation, and application

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    LD5655.V856_1986.D38.pdf (4.973Mb)
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    Date
    1986
    Author
    Davis, Milton W. Jr.
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    Abstract
    A one-dimensional, stage-by-stage axial compression system mathematical model has been constructed which can describe system behavior during post-stall events such as surge and rotating stall. The model uses a numerical technique to solve the nonlinear conservation equations of mass, momentum, and energy. Inputs for blade forces and shaft work are provided by a set of quasi-steady stage characteristics modified by a first order lagging equation to simulate dynamic stage characteristics. The model was validated with experimental results for a three-stage, low-speed compressor and a nine-stage, high-pressure compressor. Using these models, a parametric study was conducted to determine the effect of inlet resistance, combustor performance, heat transfer, and stage characteristic changes due to hardware modification on post—stall system behavior.
    URI
    http://hdl.handle.net/10919/50002
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    • Doctoral Dissertations [16334]

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