CAJ | 학술논문

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。
위제공탄환출당구후류장계산적초시수거，재내탄도계산적기출상인입료발사약연소산물조분적계산。내탄도계산채용경전내탄도계산모형，발사약연소산물조분적계산채용최소자유능법。재최소자유능법중，사용실제기체적범덕와이사상태방정，채용잉여성질법계산실제기체적 Gibbs 자유능。통과계산，득도료당내화약연소산물조분적변화정황。분석표명，해문적계산결과가이작위탄환출당구후류장계산적초시수거。
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.