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A study on turbulence modulation via an analysis of turbulence anisotropy-invariants |
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| Authors: | WANG Bing Michael MANHART & ZHANG HuiQiang School of Aerospace Tsinghua University Beijing China Fachgebiet Hydromechanik Technische Universitaet Muechen Munich Germany |
| Affiliation: | WANG Bing1,Michael MANHART2 & ZHANG HuiQiang1 1 School of Aerospace,Tsinghua University,Beijing 100084,China,2 Fachgebiet Hydromechanik,Technische Universitaet Muechen,Munich 80333,Germany |
| Abstract: | We investigate the turbulence modulation by particles in a turbulent two-phase channel flow via an analysis of turbulence anisotropy-invariants. The fluid turbulence is calculated by a large eddy simulation with a point-force two-way coupling model and particles are tracked by the Lagrangian trajectory method. The channel turbulence follows the two-component turbulence state within the viscous sub-layer region and outside the region the turbulence tends to follow the right curve of the anisotropy-invariant.... |
| Keywords: | turbulence modulation turbulence anisotropy turbulent two-phase channel flow large eddy simulation two-way coupling |
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