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为了研究二硝酰胺铵ADN(Ammonium DiNitramide)燃烧中的细节物理化学过程,建立了一个包含细节气相化学反应的ADN燃烧数学计算模型.该模型基于总连续方程,组元连续方程及能量守恒方程而建立,并运用了有限速率化学动力学原理,最后引入多组元系统状态方程以封闭方程组.此外,该燃烧模型还成功应用了包含34种组元和165个细节气相化学反应的化学动力学方案.使用该模型对0.3 MPa下ADN燃烧气相组元摩尔分数与火焰温度分布进行预测,计算结果与试验数据相当吻合,说明该燃烧能够准确描述ADN气相燃烧波结构.
In order to study the detailed physical and chemical processes in the combustion of Ammonium DiNitramide (ADN), a mathematical model of ADN combustion with detailed gas phase chemical reaction was established. The model was based on the total continuous equation, element continuous equation and energy conservation equation Established and applied the principle of finite rate chemical kinetics, and finally introduced the state equations of multi-element systems to close the system of equations.In addition, the combustion model has been successfully applied chemical kinetics containing 34 kinds of elements and 165 details of gas-phase chemical reactions The model was used to predict the gas mole fraction and flame temperature distribution of ADN at 0.3 MPa. The calculated results are in good agreement with the experimental data, which shows that the combustion can accurately describe the structure of ADN gas-phase combustion wave.