E.S. Gesheva, S.I. Shtork
Institute of Thermophysics S.S. Kutateladze of Siberian Branch of Russian Academy of Sciences, Novosibirsk

Investigation of characteristics of spiral vortexes in a swirl flow

The work is aimed at a detailed study of the characteristics of a vortex flow forming in a tangential-type chamber. The velocity and vorticity fields were measured using a contactless flow diagnostics method, and verification of the calculated data obtained with the CFC StarCM + package using LES and DES turbulent flow simulation methods was performed. The calculated velocity profiles and the frequency of the precession of the vortex agree with the experimental data, which indicates the correctness of the chosen approach for modeling a turbulent swirling flow.

The work is aimed at a detailed study of the characteristics of a vortex flow forming in a tangential-type chamber. The velocity and vorticity fields were measured using a contactless flow diagnostics method, and verification of the calculated data obtained with the CFC StarCM + package using LES and DES turbulent flow simulation methods was performed. The calculated velocity profiles and the frequency of the precession of the vortex agree with the experimental data, which indicates the correctness of the chosen approach for modeling a turbulent swirling flow.
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