Three-dimensional Numerical Simulation Of Burning Natural Gas Unit Glass Furnace Combustion Space

This thesis systematically reviewed the development of research methods, especially numerical simulation, for the combustion process of the unit glass melting furnace, and established the three-dimensional natural-gas-firing mathematical model which is very practical in natural-gas fired unit glass furnaces on the base of theory of glass melting furnaces and industrial application. The model mainly consisted of flow, reaction and radiation model. The flow process used standard k-e model to solve; the reaction process used finite-rate/eddy-dissipation model to solve; the radiation process used discrete ordinates model to solve.In this paper, we meshed the body using Gambit, and the equations were calculated by the Fluent. In order to get visible answers, the results were displayed by Tecplot.The temperature and flow field distribution space in natural-gas fired unit glass furnaces (7200t/year) were studied. It was concluded that this model could express objectively the law of the temperature and flow field distribution space in natural-gas fired unit glass furnaces. The model fitted the practical work conditions perfectly, and it owned practical value. This model was reasonable and could be easily enriched. Therefore, the three-dimensional image simulation would be applied widely in the research of glass furnaces.