Effect of forward-swept rotor on stall margin in an axial flow compressor at distorted inflow condition

Kyonosuke Hamaguchi, Yuu Sakata, Nobumichi Fujisawa, Yutaka Ohta, Dai Kato

Research output: Contribution to journalArticlepeer-review

Abstract

In this study, we aim to elucidate the effect of a forward-swept rotor on the stall margin and flow field at the distorted inflow conditions. The rig in this research is a low-speed, single-stage axial compressor, which has two types of rotor blades: The radially stacked blade (Radial) and the forward-swept blade (Sweep). The distortion screen that circumferentially generates distorted inflow is located upstream of the rotor. The stall margin of Sweep was found to be larger than that of Radial. Sweep was considered to improve the flow fields at the distorted inflow conditions. From the results of the study, it was observed that Sweep suppressed the circumferential expansion of the high-load regions and the spike-type disturbances generated at the distorted sector. Therefore, Sweep enlarged the stall margin more than to Radial.

Original languageEnglish
Pages (from-to)13-21
Number of pages9
JournalInternational Journal of Gas Turbine, Propulsion and Power Systems
Volume11
Issue number4
DOIs
Publication statusPublished - 2020

ASJC Scopus subject areas

  • Mechanical Engineering

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