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The present work deals with analysis of turbulent-flow structures formed in experiments in a 2D post-transitional boundary layer with moderately unfavorable pressure gradient. By means of the deterministic-turbulence method, the instantaneous structure of turbulent boundary layer was reproduced many times due to precise reproduction of the initial disturbance field, which initiated the turbulence origin process. Downstream evolution of typical vortical structures and degree of repeatability of the instantaneous flow fields within an ensemble of realizations has been documented and analyzed.
Author(s):
Vladimir Borodulin
Khristianovich Institute of Theoretical and Applied Mechanics of Siberian Branch of Russian Academy of Sciences
Russian Federation
Yury Kachanov
Khristianovich Institute of Theoretical and Applied Mechanics of Siberian Branch of Russian Academy of Sciences
Russian Federation