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Force balance in a turbulent particulate channel flow.
| Authors: |
Fukagata, K.,
Zahrai, S.,
Bark, F.H.,
|
| Type: |
Article |
| Pubstate: |
Published |
| Journal: |
Int. J. Multiphase Flow |
| Volume: |
24
867-887 |
| Year: |
1998 |
Abstract
Turbulent flows of 70 micron copper particles and 50 micron glass particles
in a channel are considered and investigated by large eddy simulations.
Only the influence of the background turbulence on the motion of particles
is considered and possible modifications of the structure of turbulence due
to motion of particles are not accounted for.
Mean velocity profiles and RMS levels are presented and are found to be
in good agreement with earlier simulation data in literature.
Differences between the statistical behavior of the two particle types are
presented and discussed. The statistical correlations are used for a detail
study of the interphase forces. The dominant contributions in the streamwise
and in the wall-normal directions are pointed out.
|
