可调叶片的发展趋势及其气动问题的探讨

基金项目: 国家自然科学基金(10477002)

Some discuss on technology trend and aerodynamics problem of adjustable blade

National Key Laboratory on Aero-Engines, School of Jet Propulsion, Beijing University of Aeronautics and Astronautics, Beijing 100083, China

摘要: 根据航空军用发动机/压气机的发展趋势预测,可调叶片技术将在高负荷、高流动马赫数、宽调节范围、低流动损失4项指标上进一步提高.气动特性计算分析结果表明,采用可弯叶片技术方案可在较高的进气马赫数下获得较大的气流折转角和较宽的气流角调节范围.这一性能水平同下一代发动机/压气机的技术性能指标要求相比仍存在一定差距.
- 航空、航天推进系统 /
- 可调叶片 /
- 可弯叶片 /
- 气动设计
Abstract: Current adjustable blade application in military aero-engine was discussed and the further development trend was predicted.High load,high mach number,broad flow angle range,and low flow loss level will be pursued.Aerodynamic analysis was carried out on a flectional cascade.It indicates that flectional cascade is an excellent solution for turning angle control in compressors.But still more work is needed on advanced adjustable cascade with higher turning angle and higher mach number.
- aerospace propulsion system /
- adjustable blade /
- flectional cascade /
- aerodynamic design

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