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Numerical analysis on influence of rotor tip clearance structure on turbine performance(PDF)

《火箭推进》[ISSN:1672-9374/CN:CN 61-1436/V]

Issue:
2013年02期
Page:
24-28
Research Field:
研究与设计
Publishing date:

Info

Title:
Numerical analysis on influence of rotor tip clearance structure on turbine performance
Author(s):
WANG Xiao-feng LI Chang-huan HAN Fei CHEN Ben-sen
Xi’an Aerospace Propulsion Institute, Xi’an 710100, China
Keywords:
liquid rocket engines;  turbin;  tip clearance
PACS:
V434+.211
DOI:
-
Abstract:
The large rotor tip clearance of the turbine operating in rich-oxygen gas leads to high leakage loss. In order to investigate the effect of rotor tip structure on turbine performance and flow field, numerical simulations of four rotor tip structures in turbine stage are conducted. The results show that the leakage through the tip clearance formed by tip shroud and labyrinth structure is minimal, so is the efficiency loss.

References:

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