| Link | https://espace.library.uq.edu.au/view/UQ:120890 |
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| Author | Search for: Buttsworth, D. R.; Search for: Davison, C.1; Search for: Macleod, J. D.1; Search for: Strapp, J. W. |
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| Affiliation | - National Research Council of Canada. NRC Institute for Aerospace Research
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| Format | Text, Article |
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| Conference | 16th Australasian fluid Mechanics Conference, 2-7 December 2007, Gold Coast, Australia |
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| Subject | aircraft turbofan; cloud water; evaporator |
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| Abstract | A number of recent aircraft turbofan power failure events have been linked to ice accretion in the initial compressor stages while the aircraft is traversing the anvil region of storm clouds. The water content in such cloud regions is not well known and the accuracy of most existing water content probes is likely to be poor under such conditions. A new cloud water content probe is being developed for airborne characterisation of such clouds and a critical feature of the probe is the evaporator. In this work we develop some analytical expressions to assist in the design and characterisation of the evaporator. In particular, we consider the issue of convective heat transfer to the ice and water particles moving with the air flow through the evaporator. For the particular evaporator design we are considering, it is shown that ice particles larger than 100 µm are unlikely to have sufficient residence time to evaporate if they remain suspended in the heated air. Although these larger ice particles are likely to impact on the evaporator walls so there is also an opportunity for direct conduction heating, the present analysis indicates that particles larger than 100 µm may not adhere to the walls. However, there are many uncertainties in the present analysis and experiments are needed to determine the actual performance of the evaporator. |
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| Publication date | 2007 |
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| In | |
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| Peer reviewed | Yes |
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| NRC number | GTL-2008-0014 |
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| NPARC number | 8929102 |
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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 | 767475a0-394e-4ec1-881a-4cdf23603a8d |
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| Record created | 2009-04-23 |
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| Record modified | 2024-04-09 |
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