Study on mathematical model of thermal autoignition for spherical display shell
This paper studied the thermal safety problems of single spherical fireworks products based on thermal dynamics simulations.The mathematical model of thermal autoignition law of single spherical display shell was established by the use of thermal autoignition theory.According to the definition of thermal resistance, the concept of the equivalent Biot number was put forward, the effect of packaging paper cartridge on the boundary conditions of thermal autoignition model was made a strong focus.The numerical solution procedures of the critical parameters of thermal autoignition model were established based on the shooting method.Took 8-inch display shells of red peony for example, combined with experiment test and analysis, the model of thermal autoignition was solved, and the values of criterion of thermal explosion and critical ambient temperature were given.
fireworks thermal autoignition mathematical model numerical calculation
JIANG Xiaojing ZHAO Linshuang DU Zhiming ZHOU Guangwei ZHAO Baoguo
State Key Laboratory of Explosion Science and Technology,Beijing Institute of Technology,Beijing 100 The Chinese Academy of AAM.Luoyang 471000,Henan Province,China Shanghai Institute of Space Power Sources,Shanghai 200245,China
国际会议
成都
英文
473-478
2013-09-24（万方平台首次上网日期，不代表论文的发表时间）