Application of numerical modelling for gas-particle two-phase flow

A two-fluid model was successfully applied to the numerical modelling for the two-phase flow at the exit of a concentration-dilution type burner, which uses the SIMPLE algorithm of Spalding and Patankar and the k-ε two-equation model for the turbulent flow in the burner. The burner of 300MW unit in the Harbin Boiler Plants was taken as an example for the simulating calculation of our model with satisfactory results, hence the model proposed here will given the designers and operators the necessary quantitative and detailed information for analysing the ignitability of the burner.