旋流煤粉多相流动与燃烧一维数学模型及应用

为了发展和有效地进行旋流煤粉多相流动与燃烧数值模拟，作者在多连续介质模型的框架中建立了综合考虑气-固两相旋流流动，燃烧与传热的旋流煤粉燃烧一维数学模型。应用这一模型对涡旋燃烧炉环形通道内煤粉燃烧和气体燃烧的数值计算表明，该模型可快速有效地用于模拟旋流煤粉多相流动与燃烧过程，给出炉内温度、速度与浓度分布以及燃烧效率等主要参数。

A One-dimensional Mathematical Model for Pulverized Coal Multi-phase Swirl Flow and Combustion and Its Applications

With a view to developing an effective way of numerically simulating the multi phase swirl flow of pulverized coal and its combustion set up was a one dimensional mathematical model. Built on the framework of a multi continuum model, the above cited mathematical model comprehensively takes into account a gas solid two phase swirl flow as well as the pulverized coal combustion and heat transfer. It can be used to simulate in a speedy and effective way the pulverized coal multi phase swirl flow and combustion process, as evidenced by the results of numerical calculation of pulverized coal and gas combustion in the annual duct of a vortex combustor. As a result, obtained were the following main parameters: in furnace temperature, distribution of pulverized coal flow speed and concentration as well as combustion efficiency, etc.