Geodesic
Investigation of the effect of air admission on the vortex structure of the flow in a tangential chamber
Žurnal Sibirskogo federalʹnogo universiteta. Matematika i fizika, Tome 16 (2023) no. 5, pp. 651-660

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In the work, numerical simulations of a turbulent swirling flow in a model tangential chamber were performed. Depending on the swirl number and water flow discharge, various flow regimes are observed: a column vortex, a spiral vortex, a double spiral vortex. In this paper, a study was made of admission air to control the transition between flow regimes. It is shown that when a gas phase is added, a transition from a two-helix structure to a single helical vortex occurs. This phenomenon reproduces the effect observed in the experiment.
Keywords: numerical simulation, swirl number, tangential chamber, multiphase flow, mixture model, Euler model.
Mots-clés : air admission, double-helix vortex structure 
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     author = {Dmitriy V. Platonov and Andrey V. Sentyabov and Andrey V. Minakov and Sergey I. Shtork},
     title = {Investigation of the effect of air admission on the vortex structure of the flow in a tangential chamber},
     journal = {\v{Z}urnal Sibirskogo federalʹnogo universiteta. Matematika i fizika},
     pages = {651--660},
     publisher = {mathdoc},
     volume = {16},
     number = {5},
     year = {2023},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/JSFU_2023_16_5_a10/}
}
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Dmitriy V. Platonov; Andrey V. Sentyabov; Andrey V. Minakov; Sergey I. Shtork. Investigation of the effect of air admission on the vortex structure of the flow in a tangential chamber. Žurnal Sibirskogo federalʹnogo universiteta. Matematika i fizika, Tome 16 (2023) no. 5, pp. 651-660. http://geodesic.mathdoc.fr/item/JSFU_2023_16_5_a10/