Abstract
The problem of present study and the development are described on simulation of combustion characteristics by l)large eddy simulation and 2)emissivity based on non-gray gas model of CO_2, H_2O and methane fuel in the case of high air temperature combustion process, and sub-models such as 3)ash softening and adhesion model to the wall in the pulverized coal combustion, 4)soot formation and agglomeration models, and 5)the simplified reaction model for the NOx formation rate.
