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  • 标题:Remarks on aerodynamic forces in seals of turbine stages
  • 本地全文:下载
  • 作者:Robert Stępień ; Krzysztof Kosowski
  • 期刊名称:Polish Maritime Research
  • 电子版ISSN:2083-7429
  • 出版年度:2009
  • 卷号:16
  • 页码:58-63
  • DOI:10.2478/v10012-008-0046-0
  • 语种:English
  • 出版社:Sciendo
  • 摘要:This paper presents results of numerical examination of flow through over-shroud seals of turbine stages.Various labyrinth seals of different configurations and number of sealing teeth were considered.It was demonstrated that results of investigations of isolated seals cannot be directly used for analyzing turbine stage operation.Such approach may lead to relatively large errors in determining value of aerodynamic force and direction of its action.
  • 关键词:rotor dynamics;self-excited vibrations;aerodynamic forces;blade seals;turbine shrouds
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