P. A. Polivanov, V. V. Markin, A. A. Sidorenko, S. D. Salenko
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引用次数: 0
Abstract
This study investigates the unsteady flow characteristics arising from the interaction between a streamwise vortex, induced by wall jet injection, and a turbulent boundary layer. Velocity field measurements are measured using Particle Image Velocimetry. The data analysis was quantify the following: turbulence anisotropy, characteristic length scales of turbulent structures, and identify dominant coherent structures using Proper Orthogonal Decomposition (POD). The results reveal mutual interaction between the turbulent boundary layer and the streamwise vortex, which depends on the vortex intensity. It is shown that the air jet vortex generator significantly alters both the mean flow topology and the unsteady dynamics of the turbulent boundary layer.
期刊介绍：
Journal of Applied Mechanics and Technical Physics is a journal published in collaboration with the Siberian Branch of the Russian Academy of Sciences. The Journal presents papers on fluid mechanics and applied physics. Each issue contains valuable contributions on hypersonic flows; boundary layer theory; turbulence and hydrodynamic stability; free boundary flows; plasma physics; shock waves; explosives and detonation processes; combustion theory; multiphase flows; heat and mass transfer; composite materials and thermal properties of new materials, plasticity, creep, and failure.
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