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RADIATIVE TRANSFER - V. Proceedings of the Fifth International Symposium on Radiative Transfer
June, 17-22, 2007, Bodrum, Turkey

DOI: 10.1615/ICHMT.2007.RadTransfProc


ISBN Print: 978-1-56700-243-0

ISSN Online: 2642-5629

ISSN Flash Drive: 2642-5661

THERMAL RADIATION OF NONISOTHERMAL PARTICLES IN COMBINED HEAT TRANSFER PROBLEMS

page 20
DOI: 10.1615/ICHMT.2007.RadTransfProc.30
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ABSTRAKT

Thermal radiation of large semi-transparent spherical particles is modeled on the basis of differential approximation suggested earlier by the author. This approach is employed to solve transient radiative-conductive problems for nonisothermal particles. Two applied problems for metal oxide particles are considered: the diagnostics of particle temperature in plasma spraying and solidification of core melt droplets during fuel-coolant interaction. It is shown that effect of particle semi-transparency in the near-infrared spectral range may be significant for both thermal radiation intensity and the physical picture of the particle solidification.

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