Simulation Methods for Gas-phase Flow Field of Cyclone Separator in Steady or Unsteady State

To study the characteristics of gas-phase flow field in a gas-solid cyclone separator, numerical simulation and calculation were performed on the flow field in the steady and unsteady state using Reynolds stress model, by adopting multi-block hybrid grid for the separator and different schemes for discretization of advection terms, after which the simulated results were compared with experimental data. Results show that for simulation of gas-phase flow field in a cyclone separator in the unsteady state, the best choice is to choose the second order upwind (SOU) scheme for momentum equations, the Quick scheme for kinetic energy and its dissipation rate, and the first order upwind (FOU) scheme for Reynolds stresses.