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Structure of the nonisothermal swirling gas-droplet flow behind an abrupt tube expansion

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Abstract

Flow structure and heat and mass transfer in a swirling two-phase stream is numerically modeled using the Reynolds stress transport model. The gas phase is described by the 3DRANS system of equations with account for the inverse influence of particles on the transport processes in the gas. The gas phase turbulence is calculated using the Reynolds stress transport model with account for the presence of disperse particles. The two-phase nonswirling flow behind an abrupt tube expansion contains a secondary corner vortex which is absent from the swirling flow. The disperse phase is redistributed over the tube cross-section. Large particles are concentrated in the wall region of the channel under the action of the centrifugal forces, while the smaller particles are in the central zone of the chamber.

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Authors and Affiliations

  1. Kutateladze Institute of Thermophysics, Siberian Branch, Russian Academy of Science, pr. Akademika Lavrent’eva 1, Novosibirsk, 630090, Russia

    M. A. Pakhomov & V. I. Terekhov

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  1. M. A. Pakhomov
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  2. V. I. Terekhov
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Correspondence to M. A. Pakhomov.

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Original Russian Text © M.A. Pakhomov, V.I. Terekhov, 2016, published in Izvestiya Rossiiskoi Akademii Nauk, Mekhanika Zhidkosti i Gaza, 2016, Vol. 51, No. 1, pp. 69–78.

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Pakhomov, M.A., Terekhov, V.I. Structure of the nonisothermal swirling gas-droplet flow behind an abrupt tube expansion. Fluid Dyn 51, 70–80 (2016). https://doi.org/10.1134/S0015462816010087

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