Abstract
Based on the developed and realized optical method of the polarization of temperature fields, the results of experiments on the visualization of temperature fields and the development of convective flows during the nonstationary conductive heating of the cell wall involving a layer of pebble beds placed in liquid are presented. Upon variations in the heat physical properties of liquid and particles (pebbles) of the granular bed, as well as the value of the supplied heat flow, the mechanism of the pebble-bed effect on the time and character of the formation of free convection close to the wall heated from below has been studied. The calculation model of the process has been suggested.
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Original Russian Text © B.G. Pokusaev, S.P. Karlov, D.A. Nekrasov, N.S. Zakharov, 2013, published in Teoreticheskie Osnovy Khimicheskoi Tekhnologii, 2013, Vol. 47, No. 4, pp. 402–409.
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Pokusaev, B.G., Karlov, S.P., Nekrasov, D.A. et al. Development of convection in near-wall granular bed during nonstationary heating. Theor Found Chem Eng 47, 336–343 (2013). https://doi.org/10.1134/S0040579513040258
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DOI: https://doi.org/10.1134/S0040579513040258