Numerical investigation of a gas–solid turbulent jet flow with Reynolds number of 4500 using lattice Boltzmann method

• The gas–solid two-phase turbulent plane jet flow (Re = 4500) was investigated by MRT-LBM.
• The flow changes from initial symmetric mode to asymmetric mode at x/d = 4.
• The dispersion of particles (St = 0.5, 1) shows remarkable lateral distribution.
• MRT-LBM has good ability to simulate turbulent flow with intermediate high Reynolds number.

The gas–solid two-phase turbulent plane jet flow with high Reynolds number of 4500 was numerical investigated by means of lattice Boltzmann method (LBM). The multiple relaxation time (MRT) was employed to deal with the high Reynolds number fluid flows, and the particles were traced by the Lagrangian method. The results show that the flow changes from initial symmetric mode to asymmetric mode with the development of the flow. And asymmetric pattern appears first at the position of x/d = 4, where the vortex structures begin to form. The dispersion of particles at different Stokes number shows various distributions. The MRT-LBM shows its good ability in simulating turbulent flow with the high Reynolds number.