Numerical Analysis of 2-D AP/HTPB Sandwich Propellant Coupled Combustion Model
Composite solid propellant took on quasi-periodic array in meso-scale, modeling periodic 2-D sandwich propellant coupled combustion model based on basic propellant unit was not only able to simplify the work of constructing meso numerical model but also reflected the intrinsic properties of combustion of composite propellant(such as heterogeneous interface, interaction of multi flames etc). A modified 49 species and 328 reaction kinetics mechanism was utilized to describe the gas phase flame structure. An “equivalent source term method was applied to describe solid propellant combustion add mass process, through adding mass source, momentum source, energy source and species source in the first layer grid cell adjacent (source zone) to burning surface. The results demonstrated that the global fame was in characteristic of premixed flame structure at low pressure (0.5MPa) and typical multi flame diffusion structure at high pressure (over 2MPa). The values of burning surface temperature, gas phase heat feedback and burning rate generated a peak near AP/HTPB interface, the trends of which varied with pressure were consistent with some papers conclusion.
LIU Xianyu ZHOU Zhiqing ZHOU Wei YANG Yuecheng
Xian Research Inst.of Hi-tech, Hongqing Town, Xian 710025, China
国际会议
2011 International Autumn Seminar on Propellants,Explosives and Pyrotechnics(2011国际推进剂、炸药、烟火技术秋季研讨会)
南京
英文
890-895
2011-09-20（万方平台首次上网日期，不代表论文的发表时间）