摘要
点源扩散燃烧时已燃相对质量、相对燃烧面和已燃相对厚度之间存在一定的关系,反映这种关系的函数称为形状函数。在燃烧过程理想的状态下,从实际推导公式入手,用Matlab编程画出相应的形状函数曲线并拟合,得出点源扩散燃烧时的形状特征量。在这个过程中,同时采用理论推导公式曲线,并与实际推导公式曲线进行比较,来保证实际推导曲线与数据的准确性。将这种方法应用于内弹道学,更方便准确了解燃气生成量及生成速率的变化规律。
Point source diffusion combustion refers to the combustion mode in which an object diffuses outward from its combustion point in the form of a sphere.There is a certain function relation between the burned relative mass,the burned relative surface and the burned relative thickness,which is called the shape function.In the ideal state of combustion process,starting from the actual derivation of the formula,the corresponding shape function curve was drawn with Matlab programming and fitting,and the shape characteristic quantity of point source diffusion combustion was obtained.In this process,the corresponding curve was drawn by the theoretical derivation formula,and compared with the curve drawn by the practical derivation formula,to ensure the accuracy of the actual curve and data.Using this method in internal ballistics,it is more convenient and accurate to understand the variation law of gas production and generation rate.
作者
孟杰
辛长范
马连泽
杨宇青
魏志芳
张树霞
MENG Jie;XIN Changfan;MA Lianze;YANG Yuqing;WEI Zhifang;ZHANG Shuxia(North University of China,Taiyuan 030051,China)
出处
《兵器装备工程学报》
CAS
CSCD
北大核心
2022年第8期211-215,274,共6页
Journal of Ordnance Equipment Engineering
基金
基础加强计划重点基础研究项目(208052020014)。
关键词
点源扩散燃烧
形状函数
旋转体
体积
表面积
point source diffusion combustion
shape function
solid of rotation
volume
surface area
