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

Takuya Abe, Hiroaki Mitsui, Yutaka Ohta

研究成果: Article

3 引用 (Scopus)

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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.

元の言語English
ページ(範囲)547-554
ページ数8
ジャーナルJournal of Thermal Science
22
発行部数6
DOI
出版物ステータスPublished - 2013 12 1

ASJC Scopus subject areas

  • Condensed Matter Physics

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