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

Fu Cheng; Song Wenping; Peng Qiang; Liao Daxiong; Wang Chao

doi:10.11729/syltlx20160118

Volume 31 Issue 4

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Journal of Experiments in Fluid Mechanics > 2017 > 31(4): 1-7. > DOI: 10.11729/syltlx20160118

Fu Cheng, Song Wenping, Peng Qiang, Liao Daxiong, Wang Chao. An overview of supercooled large droplets icing condition simulation capability in icing wind tunnels[J]. Journal of Experiments in Fluid Mechanics, 2017, 31(4): 1-7. DOI: 10.11729/syltlx20160118

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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

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Received Date: July 26, 2016
Revised Date: October 08, 2016

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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

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