结冰风洞过冷大水滴结冰条件模拟能力综述

符澄; 宋文萍; 彭强; 廖达雄; 王超

doi:10.11729/syltlx20160118

结冰风洞过冷大水滴结冰条件模拟能力综述

符澄^{1, 2, ,},
宋文萍¹,
彭强²,
廖达雄²,
王超²

1.
西北工业大学航空学院, 西安 710072
2.
中国空气动力研究与发展中心设备设计及测试技术研究所, 四川绵阳 621000

基金项目:

国家自然科学基金 11172314

国家自然科学基金 11472296

详细信息

作者简介:
符澄(1982-), 男, 江苏如东人, 工程师。研究方向:风洞气动设计。通信地址:四川绵阳二环路南段6号14分箱(621000)。E-mail: fucheng111@sina.com

通讯作者:
符澄, E-mail: fucheng111@sina.com

中图分类号: V211.73
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出版历程
- 收稿日期: 2016-07-26
- 修回日期: 2016-10-08
- 刊出日期: 2017-08-24

An overview of supercooled large droplets icing condition simulation capability in icing wind tunnels

1.
School of Aeronautics, Northwest Polytechnical University, Xi'an 710072, China
2.
Facility Design and Instrumentation Institute, China Aerodynamics Research and Development Center, Mianyang Sichuan 621000, China

摘要

摘要: 结冰风洞是进行飞行器等结冰现象及防/除冰装置研究的重要地面模拟设备。随着过冷大水滴结冰现象对飞行性能及防除冰装置设计影响的重要性日益显现，以及过冷大水滴结冰条件适航标准的提出，亟需在结冰风洞中发展SLD结冰条件的模拟能力。本文分析了CFR14-25部附录O中所确定的SLD结冰条件及其对结冰风洞的相关模拟能力所提出的要求；介绍了目前国外几座具有典型代表意义的结冰风洞及气动中心的结冰风洞在发展SLD结冰条件模拟能力方面所取得的成果及所面临的问题。本文认为过冷大水滴的产生及其与云雾颗粒在风洞内的湍流混合、超大尺度的水滴在气流中的过冷以及宽滴谱范围的颗粒度分布测量等问题，是在发展SLD结冰条件模拟能力方面所面临的关键技术问题，提出了中国空气动力研究与发展中心在发展结冰风洞SLD模拟能力方面所采取的技术路线及关键技术解决方法。
- 结冰风洞 /
- 过冷大水滴 /
- 颗粒度分布 /
- 关键技术 /
- 综述
Abstract: The icing wind tunnel is the most important ground facility in the research of ice accretion tests and the ice anti/protection devices design of airplanes. With the increasing importance of the supercooled large droplets ice accretions on the airplane surface and the development of the SLD airworthiness, the SLD icing condition simulation capability need to be developed in the icing wind tunnel. This paper presents the analysis results of the SLD icing condition in CFR14-25 Appendix O and the requirements of the SLD condition simulation in the icing wind tunnel. The developing status and the key problems of SLD icing condition simulation capabilities in several icing wind tunnels, such as IRT and CIRA-IWT are also presented. The three main key problems in the development of the SLD icing condition capability in the icing wind tunnel are the generation of large water droplets and it's turbulent mixing characteristics with the cloud in wind tunnel, the supercool process of large drops and the drop spectra accurate measurement in wide bands. The development roadmap and the key technology solution method of SLD icing condition simulation capability of icing wind tunnel of CARDC are presented in the end of this paper.
- icing wind tunnel /
- supercooled large droplets /
- drop size distribution /
- key technology /
- overview

HTML全文

图 1 附录O中的SLD条件滴谱

Fig. 1 Drop spectra of SLD condition in Appendix O

下载: 全尺寸图片幻灯片

图 2 附录O中SLD的粒径-质量分布特性

Fig. 2 Diameter-mass distribution of SLD condition in Appendix O

下载: 全尺寸图片幻灯片

图 3 NASA IRT布局图

Fig. 3 NASA IRT layout

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图 4 IRT的FZDZ条件颗粒度分布特性

Fig. 4 Droplet distribution in IRT for FZDZ conditions

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图 5 CIRA IWT的SLD模拟能力包线(v=60m/s)

Fig. 5 SLD envelope of CIRA IWT (v=60m/s)

下载: 全尺寸图片幻灯片

图 6 NRC结冰风洞FZDZ条件的模拟及风洞测试结果

Fig. 6 FZDZ simulation and calibration results in NRC icing wind tunnel

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图 7 CARDC结冰风洞过冷大水滴分布均匀性模拟结果

Fig. 7 SLD uniformity of CARDC icing wind tunnel

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表 1 附录O中对SLD状态的定义

Table 1 Definition of SLD condition in Appendix O

状态	MVD范围/μm	D_max范围/μm	MVD/μm	D_max/μm	Max LWC/(g·m^-3)
FZDZ	＜40	100~500	20	389	0.44
FZDZ	＞40	100~500	110	474	0.27
FZRA	＜40	＞500	19	1553	0.31
FZRA	＞40	＞500	526	2229	0.26

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