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Modeling of Heat Transfer in Composite Bodies Reinforced with Tubes with Swirlers Through Which a Twisted Liquid Heat Carrier Moves in the Turbulent Mode. II. Model Problem

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For a model problem, we compute the velocity form-parameters of the flows of heat carrier in tubes and the temperature fields in concrete cylindrical shells longitudinally and spirally reinforced with steel tubes filled with air pumped through these tubes. We compared the results obtained in the cases of reinforcement of these structures with smooth tubes and tubes with swirlers. It is shown that the application of tubes with swirlers significantly intensifies the process of heat removal from the structure as compared with the tubes with smooth inner surfaces if all other conditions are identical. It was discovered that, for some types of thermal boundary conditions, the efficiency of heat removal from the structure strongly depends on the direction of pumping of the heat carrier through the tubes. We also studied the influence of the parameters of reinforcement, the cross-sectional sizes of the tubes, and the velocity of motion of the heat carrier in the tubes on the temperature field formed in the shell. It was shown that the variations of these parameters make it possible to control, to a significant degree, the intensity of heat removal from the composite body. It is also demonstrated that some well-pronounced temperature edge effects may appear in the vicinities of edges of the reinforced-concrete shell.

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  1. S. Khristianovich Institute of Theoretical and Applied Mechanics, Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russia

    А. P. Yankovskii

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  1. А. P. Yankovskii
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Correspondence to А. P. Yankovskii.

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Translated from Matematychni Metody ta Fizyko-Mekhanichni Polya, Vol. 63, No. 2, pp. 150–159, April–June, 2020.

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Yankovskii, А.P. Modeling of Heat Transfer in Composite Bodies Reinforced with Tubes with Swirlers Through Which a Twisted Liquid Heat Carrier Moves in the Turbulent Mode. II. Model Problem. J Math Sci 272, 176–184 (2023). https://doi.org/10.1007/s10958-023-06408-y

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  • DOI: https://doi.org/10.1007/s10958-023-06408-y

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