DEVELOPMENT OF VORTEX STRUCTURES IN A TURBINE STAGE ROTOR PASSAGE

TASK Quarterly

JERZY ŚWIRYDCZUK¹ 

[1] Institute of Fluid-Flow Machinery, PAS;

关键词: turbine stage;    vortex structures;    CFD analysis;   

DOI  :  

来源: DOAJ

【 摘 要 】

The article analyses the formation and development of horseshoe vortices in a highpressure turbine stage rotor passage. Two turbine stages are examined: a standard performance stage, revealing regular performance characteristics and distributions of flow parameters, and a lowefficiency stage in which a large separation zone is observed in rotor passages. In the latter stage the interaction of the hub horseshoe vortex with the separation structures has been found to take a highly unsteady and periodic course and be a source of remarkable flow fluctuations.

【 授权许可】

Unknown