小型航空发动机特点及换热问题综述  

Characteristic and Heat Transfer Problem of Small Aeroengine

作　　者：黄勇[1] 李维[1] 贺宜红[1] 

机构地区：[1]中国航空动力机械研究所,株洲412001

出　　处：《南京航空航天大学学报》2016年第3期310-316,共7页Journal of Nanjing University of Aeronautics & Astronautics

摘　　要：首先介绍了小型航空发动机尺寸小、结构紧凑、转子转速高、长度短、工作环境恶劣等特点,然后基于这些特点提出了小型航空发动机在换热领域中进气系统防冰、离心压气机换热、燃烧室换热、涡轮盘换热、涡轮叶片外表面换热和涡轮叶片内换热等独特问题,最后分析了中国小型航空发动机换热领域的现有技术水平和下一步发展方向。Small size,compact configuration,high rotating speed and short length rotor,and the inclemency of the working environment that are the characteristics of the small aeroengine.Based on these characteristics,some special technique difficulties in the heat transfer of the small aeroengine are presented which include the anti-icing of intake system and the heat transfer of centrifugal compressor,combustor,the disk of the turbine and the blade/vane of turbine.Finally,the existing technique level is presented and further development of the heat transfer field of small aeroengine in China is analyzed.

关 键 词：小型航空发动机 换热 技术现状 发展方向 

分 类 号：V231.3[航空宇航科学与技术—航空宇航推进理论与工程]