摘要
用普朗特混合理论 ,在湍流燃烧回流混合区的混合指数概念基础上 ,对气体燃烧混合影响NOx 湍流生成的特性进行了理论研究。由实验结果确定了NOx 湍流反应的达姆克勒准数 ,对现有NOx 生成的湍流反应速率进行了模拟结果与实验结果的对比评价。结果表明 ,NOx 湍流生成是扩散和反应动力学联合控制的非平衡化学反应流 ,为正确使用数学模型而进行数值模拟提供了理论依据。
Based on Prantle's mixture theory and the mixture index concept of turbulent combustion recirculating zone,the effect of mixture in turbulent combustion on NO x turbulent formation was theoretically studied.Damkohler number was calculated according to the results of experiment and the comparing evaluation between the simulating and experimenting of present research on NO x formation rate.The results show that the NO x formation is the non-equilibrium reacting flow controlled jointly by diffusion and reaction dynamics,and provide the theoretical foundation for the numerical simulation by making use of the mathematical model.
出处
《冶金能源》
北大核心
2003年第4期22-24,42,共4页
Energy For Metallurgical Industry
基金
国家自然科学基金资助项目 (5 99740 2 3)
