Coexisting phenomena of surge and rotating stall in an axial flow compressor

Takuya Abe, Hiroaki Mitsui, Yutaka Ota

    Research output: Contribution to journalArticle

    3 Citations (Scopus)

    Abstract

    The unsteady inner flow structure of a single-stage axial flow compressor under the coexisting conditions of surge and rotating stall was experimentally investigated via detailed measurements of the unsteady characteristics and the internal flow velocity fluctuations. The main relevant feature of the tested compressor is a shock tube with a capacity tank connected in series to the compressor outlet through slits and a concentric duplex pipe: surge and rotating stall can both be generated by connecting the shock tube. Research attention is focused on the unsteady behavior of a rotating stall during the surge cycle. The size of the rotating stall cell during the recovery process of an irregular surge cycle was experimentally determined by the circumferential flow velocity fluctuations ahead of the rotor blade. The results suggested that the size of the rotating stall cell at the switching point of the performance curve between large and small cycles is considered to be the key parameter in determining the following surge cycle. In addition, the surge cycle is largely influenced by the unsteady behavior of the rotating stall cell.

    Original languageEnglish
    Pages (from-to)547-554
    Number of pages8
    JournalJournal of Thermal Science
    Volume22
    Issue number6
    DOIs
    Publication statusPublished - 2013 Dec

    Fingerprint

    rotating stalls
    turbocompressors
    cycles
    shock tubes
    compressors
    flow velocity
    cells
    rotor blades
    internal flow
    outlets
    slits
    recovery
    curves

    Keywords

    • Axial flow compressor
    • Coexisting state of surge and rotating stall
    • Rotating stall
    • Surge

    ASJC Scopus subject areas

    • Condensed Matter Physics

    Cite this

    Coexisting phenomena of surge and rotating stall in an axial flow compressor. / Abe, Takuya; Mitsui, Hiroaki; Ota, Yutaka.

    In: Journal of Thermal Science, Vol. 22, No. 6, 12.2013, p. 547-554.

    Research output: Contribution to journalArticle

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