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000866747 037__ $$aFZJ-2019-05816
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000866747 1001_ $$0P:(DE-HGF)0$$aSeike, Yusuke$$b0
000866747 1112_ $$aJapan Society of Fluid Mechanics, Annual Meeting 2017$$cTokyo$$d2017-09-15 - 2017-09-17$$wJapan
000866747 245__ $$aLES Analysis of Horse-shoe Vortex around the Base of a Circular Cylinder by Means of a Lattice Boltzmann Method
000866747 260__ $$c2017
000866747 300__ $$a-
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000866747 520__ $$aThe horse-shoe vortex appearing in front of the circular cylinder placed on the boundary layer was numerically investigated. The unsteady, three-dimensional feature of the flow field was captured by a lattice-Boltzmann method, where more than 300 million grids were used. The visualized instantaneous flow field indicated a complex vortex structure before and behind the cylinder. The spectrum analysis on the fluctuating pressure in these vortices indicated, however, there are only weak correlations between the horse-shoe vortex in front of the cylinder and the shed vortices in the wake. A strong down-ward flow in front of the cylinder was generated as a consequence of the horse-shoe vortex. The wall shear stress on the bottom wall was found to be maximum around the corner of the cylinder, as a consequence of the flow acceleration due to the down-ward flow which was related to the generation of the horse-shoe vortex.
000866747 536__ $$0G:(DE-HGF)POF3-511$$a511 - Computational Science and Mathematical Methods (POF3-511)$$cPOF3-511$$fPOF III$$x0
000866747 7001_ $$0P:(DE-HGF)0$$aObi, Shinnosuke$$b1
000866747 7001_ $$0P:(DE-Juel1)165948$$aLintermann, Andreas$$b2$$ufzj
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