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    Bifurcation Analysis of Nonuniform Flow Patterns in Axial-Flow Gas Compressors

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    TR_92-121.pdf (557.7Kb)
    No. of downloads: 1013

    Date
    1992
    Author
    Adomaitis, Raymond A.
    Abed, Eyad H.
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    Abstract
    We study the transition from steady, spatially uniform-flow to nonuniform and time-dependent gas axial velocity profiles in an axial flow compression system. Local bifurcation analysis of the uniform-flow solution reveals a series of bifurcations to traveling waves of different mode number as a function of throttle opening. The number of bifurcating modes is found to depend on the gas viscosity parameter, an effect introduced in this work. Using the local approximations of the bifurcating solutions as starting points of our numerical analysis, we uncover a complicated scenario of secondary bifurcations ultimately resulting in parameter ranges where locally asymptotically stable stalled-flow solutions of different mode number coexist.
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    http://hdl.handle.net/1903/5302
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