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Mathematical simulation of the formation of heat tornadoes

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Abstract

A numerical simulation of convective swirling jets arising as a result of the rotation of a heated disk in an initially immovable medium has been carried out. It is shown that in the case where a jet is swirled moderately, the flow is relaminarized and the intensity of the heat and mass transfer in the convective jet decreases, which leads to an increase in the buoyancy force and, consequently, an increase in the velocity of the flow. The air mass in the form of a cylindrical column-shaped vortex rises above the disk to a large height and, in doing so, retains its individuality.

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Correspondence to A. M. Grishin.

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Translated from Inzhenerno-Fizicheskii Zhurnal, Vol. 81, No. 5, pp. 860–867, September–October, 2008.

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Grishin, A.M., Matvienko, O.V. & Rudi, Y.A. Mathematical simulation of the formation of heat tornadoes. J Eng Phys Thermophy 81, 897–904 (2008). https://doi.org/10.1007/s10891-009-0125-9

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