Development of a Computer Model for Stationary Turbulent 3-D Gas-Particle Flows. Characteristic Parameters of Gas-Particle Flow

摘要

The main parameters governing the particle behavior in turbulent gas-particle flows are investigated and the Lagrangian and Eulerian modelling approaches are reviewed. With respect to the modelling of pulverized coal fired furnaces it is concluded that particle-particle interactions are of minor importance and gas-turbulence of major importance and that two-way gas-particle interaction modelling is to be preferred. Of the two modelling approaches the Lagrangian is found preferable due to its supreme ability to handle size distributed particles and due to the more physical way particle dispersion can be modelled. (author) 5 ills., 42 refs. (ERA citation 14:020288)