Abstract: Solid velocity, particle concentration and solid viscosity are computed in a vertical riser using a two-phase computational fluid dynamic model combination with the solid turbulence kinetic energy model based on the kinetic theory of granular flow (KTGF) and SGS (Subgrid scale) turbulence model for gas phase. The model predicts a coreannular flow structure in a riser, similar to that agree well with the experimental data of Miller and Gidaspow (1992).

Key words: Gas-solid two phase flow, Kinetic theory of granular flow, Numerical computation, SGS model