Distinctive features of vortical structures generation in separated channel flow behind a rib under transition to turbulence
V.M. Molochnikov1, A.B. Mazo2, A.V. Malyukov1, E.I. Kalinin2, N.I. Mikheev1, O.A. Dushina1, and A.A. Paereliy1
1 Research Center for Power Engineering Problems, Kaz SC, RAS, Kazan, Russia
2 Kazan (Volga Region) Federal University, Kazan, Russia
E-mail: vmolochnikov@mail.ru
Keywords: flow visualization, direct numerical simulation, laminar-turbulent transition, large-scale vortical structures, spanwise rib
Abstract
Results of laboratory research and numerical simulation of 3D separated channel flow behind a semi-cylindrical spanwise rib in laminar and transitional to turbulence flow regimes are presented. Data on dynamics of flow structure and evolution of large-scale vortical structures generated in the obstacle wake zone have been obtained.
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