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001     866747
005     20260122165736.0
037 _ _ |a FZJ-2019-05816
041 _ _ |a Multiple
100 1 _ |0 P:(DE-HGF)0
|a Seike, Yusuke
|b 0
111 2 _ |a Japan Society of Fluid Mechanics, Annual Meeting 2017
|c Tokyo
|d 2017-09-15 - 2017-09-17
|w Japan
245 _ _ |a LES Analysis of Horse-shoe Vortex around the Base of a Circular Cylinder by Means of a Lattice Boltzmann Method
260 _ _ |c 2017
300 _ _ |a -
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520 _ _ |a The 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.
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536 _ _ |0 G:(DE-Juel-1)SDLFSE
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700 1 _ |0 P:(DE-HGF)0
|a Obi, Shinnosuke
|b 1
700 1 _ |0 P:(DE-Juel1)165948
|a Lintermann, Andreas
|b 2
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856 4 _ |u https://juser.fz-juelich.de/record/866747/files/Japan%20Society%20of%20Fluid%20Mechanics%2C%20Annual%20Meeting%202017%20-%202017%20-%20LES%20Analysis%20of%20Horse-shoe%20Vortex%20around%20the%20Base%20of%20a%20Circular%20Cylinder.pdf?subformat=pdfa
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