Publication de 6 numéros par an
ISSN Imprimer: 1940-2503
ISSN En ligne: 1940-2554
Indexed in
RADIATIVE TRANSFER IN VACUUM THERMAL INSULATION OF SPACE VEHICLES
RÉSUMÉ
An improved radiative transfer model for vacuum thermal insulations of space vehicles is developed. The effects of both the fibrous spacer between the metal foils and thin oxide layer on the foil surface are taken into account in the calculations of the integral radiative flux through the insulation. Parametric calculations at realistic values of the problem parameters indicate that absorption and scattering of thermal radiation by fibers do not lead to a significant decrease in the radiative flux. At the same time, even very thin oxide films on the surfaces of aluminum foils should be taken into account in engineering calculations. Theoretical estimates show that not even a very dense spacer made of metalized glass fibers with aluminum coating about 50 nm thick may lead to almost a twofold decrease in the integral radiative flux.
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Krainova Irina V., Dombrovsky Leonid A., Nenarokomov Aleksey V., Budnik Sergey A., Titov Dmitry M., Alifanov Oleg M., A generalized analytical model for radiative transfer in vacuum thermal insulation of space vehicles, Journal of Quantitative Spectroscopy and Radiative Transfer, 197, 2017. Crossref
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Nenarokomov Aleksey V., Dombrovsky Leonid A., Krainova Irina V., Alifanov Oleg M., Budnik Sergey A., Identification of radiative heat transfer parameters in multilayer thermal insulation of spacecraft, International Journal of Numerical Methods for Heat & Fluid Flow, 27, 3, 2017. Crossref
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Nenarokomov Aleksey V., Alifanov Oleg M., Krainova Irina V., Titov Dmitry M., Morzhukhina Alena V., Estimation of environmental influence on spacecraft materials radiative properties by inverse problems technique, Acta Astronautica, 160, 2019. Crossref