Abstract
A newly developed filtered density function (FDF) transport equation was used to describe the fluid velocity seen by the particles in two-phase flows and the interaction between the two phases was considered. Numerical simulation of a gas-particle two-phase backward-facing flow was carried out with the LES/FDF model, in which the large eddy simulation (LES) was used for the gas-phase. The numerical results were compared with the experimental data. The comparison shows that the LES/FDF model can distinctly improve the precision of the simulation. Further investigation has been carried out on the turbulence modification by particles with different particle parameters.
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