K-ε-t model of dense liquid-solid two-phase turbulent flow and its application to the pipe flow

To predict the characteristics of dense liquid-solid two-phase flow, K-ε-T model is established, in which the turbulent flow of fluid phase is described with fluid turbulent kinetic energy K_f and its dissipation rate ε_t , and the particles random motion is described with particle turbulent energy K_p and its dissipation rate ε_p and pseudothemwl temperature T_p. The governing equations are also derived. With K-ε-T model, numerical study of dense liquid-solid two-phase turbulent up-flow in a pipe is performed. The calculated results are in good agreement mth experimental data of Alajbegovic et al. (1994), and some flow features are captured.