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NUMERICAL STUDY ON THE MECHANISM FOR THREE-DIMENSIONAL EVOLUTION OF VORTEX AND THE STRUCTURAL FEATURES IN THE WAKE BEHIND A CIRCULAR CYLINDER[J]. Chinese Journal of Theoretical and Applied Mechanics, 1993, 25(3): 264-275. DOI: 10.6052/0459-1879-1993-3-1995-642
Citation: NUMERICAL STUDY ON THE MECHANISM FOR THREE-DIMENSIONAL EVOLUTION OF VORTEX AND THE STRUCTURAL FEATURES IN THE WAKE BEHIND A CIRCULAR CYLINDER[J]. Chinese Journal of Theoretical and Applied Mechanics, 1993, 25(3): 264-275. DOI: 10.6052/0459-1879-1993-3-1995-642
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NUMERICAL STUDY ON THE MECHANISM FOR THREE-DIMENSIONAL EVOLUTION OF VORTEX AND THE STRUCTURAL FEATURES IN THE WAKE BEHIND A CIRCULAR CYLINDER

  • 中国科学院力学研究所

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  • In this paper, the mechanism and dynamic process for three-dimensional evolution of the Karman vortices and the vortex filaments in the braid regions, and the structural features in the wake behind a ciccular cylinder at moderate Reynolds number (≈103) have been studied numerically. The vortex filament in the wake field are tracked by the inviscid vortex dynamics and the localized-induction approximation (LIA) method. The time-averaged velocity field of the wake and Karman vortex street flow field are consi...
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