缘线匹配技术在轴流透平设计中的应用探索  

APPLIED EXPLORATIONS ABOUT THE EDGE-MATCHING TECHNIQUE FOR STEAM TURBINE DESIGN

作　　者：陈江[1] 季路成[2] 阎朝[2] 

机构地区：[1]北京航空航天大学能源与动力工程学院,北京100083 [2]中国科学院工程热物理研究所,北京100080

出　　处：《工程热物理学报》2004年第4期585-587,共3页Journal of Engineering Thermophysics

基　　金：中国科学院知识创新工程项目资助(No.KGCX2-301);国家自然科学基金项目资助(No.50376062)

摘　　要：缘线匹配技术是叶轮机非定常气动设计技术,它以叶轮机相邻叶排前、后缘线空间相对位置为非定常设计自由度来进一步提升叶轮机性能,这在叶轮机定常设计框架下是不能考虑的。本文以单级蒸汽透平设计为例对缘线匹配非定常设计技术进行数值研究,初步展示了缘线匹配的应用方法及其设计验证,数值计算结果表明缘线匹配技术为叶轮机非定常气动设计提供了有效的设计自由度。The spatial relationship between the trailing edge and the leading edge of the two neighboring blade rows, which masters the phase angle of the unsteady flow and can not be considered under the frame of steady flow theory, is now taken into account in further improving turbomachinery performance by the Edge-Matching Technique. This paper presents numerical investigations about the EM. Its application methods can be illustrated and validated. One-stage steam turbine are modified with the use of the EM. Numerical results show that the EM provides an effective design freedom for the unsteady design of turbomachinery.

关 键 词：非定常设计 叶轮机 透平 缘线匹配 

分 类 号：V211.15[航空宇航科学与技术—航空宇航推进理论与工程]