Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
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Original language | English |
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Title of host publication | 9th AIAA Atmospheric and Space Environment Conference |
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Subtitle of host publication | AIAA AVIATION Forum |
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Place of Publication | Reston, VA |
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Publisher | Aerospace Research Central |
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Number of pages | 9 |
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ISBN (Electronic) | 978-1-62410-496-1 |
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DOIs | |
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Publication status | Published - 31 May 2018 |
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Event | AIAA Atmospheric and Space Environments Conference - Denver, United States Duration: 5 Jun 2017 → 9 Jun 2017 Conference number: 9th https://arc.aiaa.org/doi/book/10.2514/MASE17 |
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Conference | AIAA Atmospheric and Space Environments Conference |
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Country/Territory | United States |
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City | Denver |
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Period | 5/06/17 → 9/06/17 |
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Internet address | |
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Abstract
Aircraft icing poses a serious threat to flight safety. Unfrozen parts of impinging water on the surface of the aircraft will run back under the effect of high-speed airflow, altering liquid distribution and heat transfer characteristics. In this paper we conducted a series of experiments over a wide range of wind speed (Ua = 17.8~52.2 m/s), film Reynolds number (Ref = 26~128) and inclined angle (α = 0°, ±30°, ±45°) to investigate the dynamics of thin water film on an Aluminum substrate. The superficial morphology of the water film were investigated by high-speed camera, and the instantaneous film thicknesses were measured by a laser focus displacement meter based on a confocal chromatic technique. The interface between the gas and liquid phases consisted of underlying thin film and multiple scaled fluctuations. The measured time-averaged filim thickness data agrees with previous model predictions. Based on the experimental results, a relationship between the film thickness and the wind speed, film Reynolds number, inclined angle was proposed. A new correlation to calculate the interfacial shear stress and superficial roughness on the wavy surface is also suggested.
Notes
This document is the Accepted Manuscript version of a paper presented at the 9th AIAA Atmospheric and Space Environments Conference, 5-9 June 2017, Denver, Colorado.
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ID: 14838694