Abstract: This paper establishes a three-dimensional mathematical model of cell glass furnace in the oxygen-enriched combustion space, which consisting of gas flow model composed of mass conservation equation, momentum conservation equation, energy conservation equation as well as the standard k-ε model; chemical reaction model composed of eddy-dissipation model; and radiation model composed of discrete ordinates model. Based on the object of an annual output of 20000 t fiber glass furnace, the distribution of gas flow and temperature field, velocity field of the furnace are researched by using FLUENT software. According to the comparison between the simulation results and the measured results obtained on the spot, it can be suggested that the mathematical model can objectively reflect the real distribution of the temperature field and velocity field of the cell glass furnace. On the basis of research results, the author makes some recommendations to improve simulation results of the combustion process, that is, to adjust the layout of the spray gun on the combustion space. It also can be shown that the three-dimensional mathematical model plays an important role in the research and application of the oxygen-enriched combustion of cell glass furnace.

Key words: mathematical model;numerical simulation;glass melting furnace;temperature field;velocity fields