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Effect of bowed blades on the separation structures in high-turning compressor cascades

  • Hua Liang Zhang*
  • , Song Tao Wang
  • , Zhong Qi Wang
  • *Corresponding author for this work
  • School of Energy Science and Engineering, Harbin Institute of Technology

Research output: Contribution to journalArticlepeer-review

Abstract

A numerical simulation was performed to analyze the effect of bowed blades on the separation structures in a high-turning compressor cascade. The bowed angles were ±10°, ±20°, ±30° respectively. Using the topological rules of the surface flow pattern, the separation configurations on the suction surface at different bowed angles is discussed. The results show that a positive bowed blade can restrain the corner separation and change the separation configuration, while it can not a-void the flow separation on the suction surface. So, although a positive bowed blade with a small angle can improve the flow performance, the flow becomes worse again when the positive bowed angle exceeds 20°. A negative bowed blade increases the flow separation and the flow performance is reduced remarkably.

Original languageEnglish
Pages (from-to)36-39+54
JournalTuijin Jishu/Journal of Propulsion Technology
Volume28
Issue number1
StatePublished - Feb 2007
Externally publishedYes

Keywords

  • Bowed cascade
  • High-turning
  • Separation structure
  • Topology

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