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“Deterioration” criteria for convective heat transfer in gas flow through non-circular ducts
The reduction in turbulent, convective heat transfer parameters observed in some supercritical data and in experiments with common gases can be due to radial property variation, acceleration, buoyancy or combinations of these phenomena, depending on the conditions of the applications. To date criter...
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Published in: | Nuclear engineering and design 2004-08, Vol.232 (3), p.327-333 |
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Main Authors: | , |
Format: | Article |
Language: | English |
Subjects: | |
Citations: | Items that this one cites Items that cite this one |
Online Access: | Get full text |
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Summary: | The reduction in turbulent, convective heat transfer parameters observed in some supercritical data and in experiments with common gases can be due to radial property variation, acceleration, buoyancy or combinations of these phenomena, depending on the conditions of the applications. To date criteria for the onsets of these effects have been developed for vertical circular tubes. This note presents extensions of these criteria to non-circular ducts with constant cross-sections as in the cooling channels of some advanced nuclear reactors. |
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ISSN: | 0029-5493 0029-5450 1872-759X 1943-7471 |
DOI: | 10.1016/j.nucengdes.2004.05.004 |