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针对湍流燃烧中氮氧化物有限反应的生成速率 ,用二阶矩封闭方法 ,建立了考虑密度、温度、浓度等脉动影响的全脉动数学模型 ;提出了湍流密度脉动强度的概念及模化的方程式 ,使模型得到了封闭。该模型使氮氧化物的模拟值更接近于实验值 ,具有模拟的合理性和经济性
Aiming at the formation rate of the limited reaction of nitrogen oxides in turbulent combustion, a full-pulsation mathematical model considering the influences of density, temperature, concentration and other pulsations is established by the second-order moment closure method. The concept of turbulent density pulsation intensity and the equation , So that the model has been closed. The model makes the simulation value of nitrogen oxides closer to the experimental value, with the simulation of the rationality and economy