涡轮导叶位置对封严效率预测模型的影响

兰州理工大学学报 ›› 2022, Vol. 48 ›› Issue (2): 55-60.

涡轮导叶位置对封严效率预测模型的影响

杜林茂, 赵国昌^*

中国民航大学适航学院, 天津 300300

收稿日期:2021-04-06 出版日期:2022-04-28 发布日期:2022-05-07
通讯作者: 赵国昌(1964-),男,北京人,教授,博导.Email:shdg23@outlook.com
基金资助:
中央高校基本科研业务费中国民航大学专项(3122019169)

Effect of turbine guide vane position on sealing efficiency prediction model

DU Lin-mao, ZHAO Guo-chang

College of Airworthiness, Civil Aviation University of China, Tianjin 300300

Received:2021-04-06 Online:2022-04-28 Published:2022-05-07

摘要/Abstract

摘要： 为研究涡轮导叶位置对燃气入侵的影响,对预测涡轮盘腔封严效率的降阶模型进行优化.采用数值模拟的方法和回归分析法,分析不同导叶位置下外环压力场的变化规律;并以计算数据和文献实验数据为基础,优化预测模型中与外环流动状态相关的参数.结果表明,模型中控制外环雷诺数的参数与导叶和封严间隙的相对位置存在正相关的线性关系.

关键词: 燃气入侵, 降阶模型, 导叶位置, 回归分析

Abstract: In order to study the effect of turbine guide vane position on gas ingestion, the reduced-order model for predicting the sealing efficiency of the turbine disk cavity is optimized.Numerical simulation method and regression analysis are used to analyze the variation law of the pressure field in the annulus at different positions of the guide vanes. Based on the calculated data and literature experimental data, the parameters related to the flow state of the annulus in the prediction model are optimized. The results show that there is a positive linear relationship between the control parameters of the annulus Reynolds number and the relative position of the guide vane and the rim seal in the model.

Key words: gas ingestion, reduced order model, guide vane position, regression analysis

中图分类号:

V231.3

杜林茂, 赵国昌. 涡轮导叶位置对封严效率预测模型的影响[J]. 兰州理工大学学报, 2022, 48(2): 55-60.

DU Lin-mao, ZHAO Guo-chang. Effect of turbine guide vane position on sealing efficiency prediction model[J]. Journal of Lanzhou University of Technology, 2022, 48(2): 55-60.