航空发动机中冰晶结冰的研究进展

沈浩; 韩冰冰; 张丽芬

doi:10.11729/syltlx20190124

航空发动机中冰晶结冰的研究进展

沈浩^1,,
韩冰冰¹,
张丽芬^2, ,

1.
中国民用航空上海航空器适航审定中心, 上海 200335
2.
西北工业大学动力与能源学院, 西安 710072

基金项目:

结冰与防除冰重点实验室开放课题 IADL20190206

详细信息

作者简介:
沈浩(1978-), 男, 江苏启东人, 高级工程师。研究方向:运输类飞机机械系统适航审定。通信地址:上海虹桥机场空港一路128号(200335)。E-mail:shenhao_hdcaac.gov.cn

通讯作者:
张丽芬, E-mail: zhanglifen@nwpu.edu.cn

中图分类号: V231.3
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出版历程
- 收稿日期: 2019-09-22
- 修回日期: 2020-01-12
- 刊出日期: 2020-12-24

Research progress of the ice crystal icing in aero-engine

1.
Shanghai Aircraft Airworthiness Certification Center of Civil Aviation Administration of China, Shanghai 200335, China
2.
School of Power and Energy, Northwestern Polytechnical University, Xi'an 710072, China

摘要

摘要: 一般认为经过风扇压缩后空气温度高于冰点，压气机内不会发生结冰。然而近年来，国外研究者对若干起发动机推力损失故障的研究表明冰晶能够引起压气机内部结冰，并在试验室中再现了温度高于冰点时压气机内结冰这一现象。我国在航空发动机冰晶结冰研究方面刚刚起步，为准确掌握国内外研究现状，从数值和试验两方面对国内外已开展的压气机内结冰研究进行了分析与总结，讨论了当前冰晶结冰的主要研究成果和存在的局限，提出了开展冰晶结冰研究需重点关注的方向，为我国航空发动机冰晶摄入结冰研究和适航审定研究提供一定参考。
- 压气机结冰 /
- 冰晶 /
- 航空发动机 /
- 热力学 /
- 动力学
Abstract: It is believed that the temperature of air compressed by fan is higher than the freezing point, therefore the compressor would not freeze. However, researchers found in several engine thrust loss accidents occurred in recent years that the ice crystal can lead to compressor icing. The researchers have reproduced this phenomenon in the lab. Ice crystal icing research in the area of aero-engine has just started in China. In this paper, the ice crystal icing issues are analyzed and discussed from both numerical research and experimental research aspects. The highlight and limitation are also included. The research focus which should be paid attention to is proposed in the end. This paper can give some reference for engine icing study and certification.
- compression system icing /
- ice particles /
- aero-engine /
- thermodynamics /
- dynamics

HTML全文

图 1 发动机功率损失和发动机损伤事件发生的高度和温度范围^[10]

Fig. 1 Altitude and temperature of engine power loss and damage events^[10]

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图 2 典型的涡轮风扇发动机空气压缩系统图(潜在结冰位置)^[11]

Fig. 2 Schematic of typical turbofan engine compression system with potential ice accretion sites noted^[11]

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图 3 NRCC高空测试试验室安装的冰晶测试系统^[23]

Fig. 3 Ice crystal test system installed in the NRCC research altitude test facility^[23]

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图 4 给定总压，总温，液态水含量，总水含量和马赫数下的最佳冰晶结冰条件概念曲线^[25]

Fig. 4 Conceptual curve showing optimal ice-crystal icing conditions for a given p_t, T_t, LWC, TWC, and Mach number^[25]

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图 5 湿球温度为2 ℃时不同中位质量直径冰晶积聚示例^[27]

Fig. 5 Sample accretion for different crystal MMD at T_wb =2 ℃^[27]

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图 6 无水膜模型和有水膜模型^[40]

Fig. 6 Model without water film and with water film^[40]

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图 7 冰晶积冰的2个阶段^[36]

Fig. 7 The two stages of ice crystal icing^[36]

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