Stall inception process and prospects for active hub-flap control in three-stage axial flow compressor

Tomoya Okada, Atsushi Kawajiri, Yutaka Ohta, Eisuke Outa

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

The possibility to apply the active hub-flap control method, which is a proven rotating stall control method for a single-stage compressor, to a 3-stage axial compressor is experimentally discussed, where complex rotating stall inception processes are observed. The research compressor is a 3-stage one and could change the stagger angle settings for rotor blades and stator vanes. Sixteen rotor blade/stator vane configuration patterns were tested by changing stagger angle for the stator vanes. By measurement of surface-pressure fluctuation, stall inception processes are investigated and the measured pressure fluctuation data is used as a predictive signal for rotating stall. The experimental results show that the stall detection system applied to active hub-flap control in a single-stage compressor could be usefully applied to that in a 3-stage compressor with a more complex stall inception process.

Original languageEnglish
Pages (from-to)324-330
Number of pages7
JournalJournal of Thermal Science
Volume17
Issue number4
DOIs
Publication statusPublished - 2008 Dec 1

Keywords

  • Active stall control
  • Axial flow compressor
  • Rotating stall
  • Stall inception
  • Stall precursor

ASJC Scopus subject areas

  • Condensed Matter Physics

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