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Study on effect of stator blade surface state on turbine performance(PDF)

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

Issue:
2018年05期
Page:
16-20
Research Field:
研究与设计
Publishing date:

Info

Title:
Study on effect of stator blade surface state on turbine performance
Author(s):
WANG Xiaofeng; MAO Kai;  XU Kaifu;  LI Xiangyang;  WANG Lin
1.Xi'an Aerospace Propulsion Institute, Xi'an 710100, China; 2.Xi'an Space Engine Factory, Xi'an 710100, China
Keywords:
turbine stator;  B-spline curve;  surface status;  rapid prototyping
PACS:
V434.2-34
DOI:
-
Abstract:
The stator blade of a turbine often behaves different surface state due to the change of wax molding process.Based on analyzing the specific process principle of rapid prototyping, the blade profiles with different surface state were structured by means of average B-spline curve, and the numerical simulations of internal flow field were carried out to investigate the effect of stator blade surface state on turbine performance.The results show that, the smoother the stator surface is, the closer the turbine performance reaches to the ideal design condition.The influence of the suction surface condition on the turbine performance is very evident.The turbine efficiency and flow area are respectively increased by 12% and 3% as the smoothness of suction surface is increased.

References:

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