变几何变工质涡轮性能预测及变工况性能计算

推进技术 ›› 1996, Vol. 17 ›› Issue (1): 37-41.

变几何变工质涡轮性能预测及变工况性能计算

葛满初,齐宗敏,徐进,黄忠湖,胡松岩

沈阳航空发动机研究所;沈阳航空发动机研究所;沈阳航空发动机研究所;沈阳航空发动机研究所;沈阳航空发动机研究所

发布日期:2021-08-15

CHARACTERISTICS CALCULATION AT DESIGN AND OFF-DESIGN FOR TURBINE WITH VARIABLE GEOMETRY AND MEDIUM

Shenyang Aeroengine Research Inst., Shenyang, 110015;Shenyang Aeroengine Research Inst., Shenyang, 110015;Shenyang Aeroengine Research Inst., Shenyang, 110015;Shenyang Aeroengine Research Inst., Shenyang, 110015;Shenyang Aeroengine Research Inst., Shenyang, 110015

Published:2021-08-15

摘要/Abstract

摘要： 为适应涡轮在变工质，大变工况条件下的性能预测，研究了工质的性质，涡轮各种损失与涡轮流通通道内的临界堵塞流动，变几何涡轮的性能计算方法。这些研究的结果是变几何变工质涡轮理论分析的有用工具。

关键词: 涡轮;变几何形状结构;工作介质;性能预测;数值计算

Abstract: ngine in space shuttle works in variable condition, from Mach number zero to Machnumber 3￣ 3. 5. So turbine works at off-design condition. The performance of engine is dependent oncharacter of turbine at off-design. The variable geometric turbine is an effective method of increasingefficiency and improving match of turbine with other parts of engine. In this paper, the calculatingmethod of medium property, turbine loss and critical flow condition, and the characteristics of variablegeometry turbine are researched. These method are useful for design and analysis of variable geometricturbines.

Key words: Turbine;Variable geometry structure;Working medium;Performance prediction;Numerical calculation

葛满初,齐宗敏,徐进,黄忠湖,胡松岩. 变几何变工质涡轮性能预测及变工况性能计算[J]. 推进技术, 1996, 17(1): 37-41.