摘要
为提供弹丸出膛口后流场计算的初始数据,在内弹道计算的基础上引入了发射药燃烧产物组分的计算。内弹道计算采用经典内弹道计算模型,发射药燃烧产物组分的计算采用最小自由能法。在最小自由能法中,使用实际气体的范德瓦尔斯状态方程,采用剩余性质法计算实际气体的Gibbs自由能。通过计算,得到了膛内火药燃烧产物组分的变化情况。分析表明,该文的计算结果可以作为弹丸出膛口后流场计算的初始数据。
To calculate the muzzle blast flow,the combustion product was calculated based on interior ballistic model.The classical model of interior ballistics was established to simulate the gas in bore,and the minimum free-energy method was used to calculate the combustion products. These programs employ the residual property formulation to solve the Gibbs free energy on the basis of Van der Waals equation of state.By calculation,the number of moles of gun powder com-bustion product component was obtained in bore.The analysis result shows that the numerical result is sufficient to be the initial data for calculating muzzle blast flow.
出处
《弹道学报》
CSCD
北大核心
2014年第1期13-16,共4页
Journal of Ballistics
关键词
内弹道
燃烧
自由能
interior ballistics
combustion
free-energy
