| DOI | Resolve DOI: https://doi.org/10.2514/6.2021-2652 |
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| Author | Search for: King-Steen, Laura-Cheri; Search for: Strapp, John W.; Search for: Orchard, David1; Search for: Van Zante, Judith F.; Search for: Korolev, Alexei; Search for: Heckman, Ivan; Search for: Esposito, Biagio |
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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 2021 Forum, August 2-6, 2021, Virtual Event |
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| Physical description | 13 p. |
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| Abstract | The simulation of clouds containing Supercooled Large Droplets has received increasing attention due to the introduction of Appendix O and future associated requirements for means of compliance. Supercooled Large Droplet conditions can cover four orders of magnitude in drop sizes, imposing a larger instrument measurement challenge than for Appendix C conditions. Wind tunnel facilities have adopted different instrumentation for liquid water content measurement, with fundamentally different principles of operation. In order to explore the comparability of the different instruments used for Appendix C and SLD measurement, and its impact on confidence in measurements used for means of compliance, a project was established to conduct a series of dedicated tests at three wind tunnel facilities. To date, liquid water content measurements have been completed using a Multi-Element sensor as the common instrument at two of the facilities. The data have provided preliminary information suggesting that substantial inter-facility differences likely exist in liquid water content estimates in Supercooled Large Droplet conditions that appear to be largely attributable to the choice of calibration instruments. These results are dependent on the assumption that the Multi-Element probe would produce equivalent measurements at the two facilities if the liquid water content were the same, regardless of other environmental differences that may exist between the two facilities. Planned further testing with other liquid water content measurement techniques may provide further information to confirm or refute the results of this study. |
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| Publication date | 2021-07-28 |
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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 | 44ba899a-7a6e-4e27-911c-30fe12a76986 |
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| Record created | 2022-08-26 |
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| Record modified | 2022-08-26 |
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