风扇/压气机技术发展和对今后工作的建议

被引:120
作者
陈矛章
机构
[1] 北京航空航天大学动力系北京
关键词
风扇; 压气机; 叶片; 非定常流;
D O I
10.13224/j.cnki.jasp.2002.01.001
中图分类号
V235.13 [涡轮风扇发动机];
学科分类号
摘要
风扇 /压气机是航空涡轮发动机的关键部件之一 ,高推重比发动机对它们提出了更高的要求 ,出现了一些新的技术问题需要加以研究解决。本文评述了风扇 /压气机的发展趋势 ,对于提高其性能的主要措施如高叶片速度 ,低展弦比 ,高通流进口级 ,掠形叶片技术 ,大小叶片气动布局等都作了详尽程度不同的评述。风扇 /压气机内的非定常流动不仅影响气动性能 ,而且影响可靠性 ,如高周疲劳、失速和颤振等 ,应加强研究。现代计算流体力学为我们提供了跨越式发展的可能性。本文对今后工作提出了建议。
引用
收藏
页码:1 / 15
页数:15
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