| DOI | Resolve DOI: https://doi.org/10.2514/6.2020-2825 |
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| Author | Search for: Chalmers, Jennifer L.1; Search for: Wiebe, Michael1; Search for: Neuteboom, Martin1; Search for: Davison, Craig R.1 |
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| Affiliation | - National Research Council of Canada. Aerospace
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| Format | Text, Article |
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| Conference | AIAA Aviation 2020 Forum, June 15-19, 2020, virtual event |
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| Subject | axial compressors; lasers; icing wind tunnel; icing conditions; aircraft engines; poisson distribution; image analysis; ice clouds; particle image velocimetry; radial velocity |
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| Abstract | The National Research Council of Canada (NRC) has developed the Ice-Crystal Environment Modular Axial Compressor Rig (ICE-MACR) for simulating altitude ice crystal icing of aircraft engines in altitude facilities. Commissioning of the rig under altitude icing conditions was conducted in the NRC’s altitude icing wind tunnel (AIWT) in May-June 2019. The rig consisted a single working compressor stage with a downstream accretion test article representative of a compressor s-duct. Measuring fragmented ice particle size downstream of the working stage is critical to understand the icing conditions at the accretion test article. Particle break-up data across the stage will also be important for validation of numerical icing models. Details of a laser shadowgraph technique used to quantify ice particle size and subsequent results are presented. Results include particle size as a function of rotor speed, and radial distribution of particle size downstream of the rotor. In addition, a process to develop and assess a method of determining the particle melt fraction from the backlit microscopic (shadowgraph) images is presented. The shadowgraph derived melt ratio is compared to Multi-Element probe melt ratio measurement for validation. For the test conditions studied, the melt ratio calculated for the small particle bins (<26 µm) was found to correlate well with the Multi-Element melt ratio. As the shadowgraph data has the ability to quantify the melt ratio of different particle size ranges, it could provide a powerful complement to melt and fracture modeling. |
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| Publication date | 2020-06-15 |
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| Publisher | American Institute of Aeronautics and Astronautics |
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| In | |
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| Language | English |
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| Peer reviewed | Yes |
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| Export citation | Export as RIS |
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| Report a correction | Report a correction (opens in a new tab) |
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| Record identifier | ea1f1858-1de7-4c0a-a820-b92b3d5f9556 |
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| Record created | 2022-03-25 |
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| Record modified | 2023-07-04 |
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