Microflame diffusion properties of AP/HTPB propellant under binder width effects

被引：9

作者：

Chen, Kaixuan ^{[1
]}

Xue, Xiaochun ^{[1
]}

Yu, Yonggang ^{[1
]}

Ye, Zhenwei ^{[2
]}

机构：

[1] Nanjing Univ Sci & Technol, Sch Energy & Power Engn, Nanjing 210094, Jiangsu, Peoples R China

[2] Hangzhou Dianzi Univ, Sch Sci, Hangzhou 310018, Zhejiang, Peoples R China

来源：

JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY | 2023年 / 37卷 / 02期

基金：

中国国家自然科学基金;

关键词：

AP/HTPB propellant; BDP model; Diffusion flame; Random particle packing; SANDWICH PROPELLANT; FLAME CALCULATIONS; POLYMERIC BINDER; RANDOM PACKS; COMBUSTION; DEFLAGRATION;

D O I：

10.1007/s12206-023-0142-1

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

The present study proposes a method to estimate the microflame properties of ammonium perchlorate/hydroxyl-terminated polybutadiene (AP/HTPB) propellant at different binder widths. A 3D random particle packing is generated by the Monte Carlo method. A trans -formation from Miller packing to sandwich model is used by the dual slicing technique. The gas -solid coupling model and the two-step BDP flame model in the combustion field are established to study the influence of kinetic chemical and fluid diffusion process on the micrflame properties. Finally, the mathematical relationships of the burning rate r(b) and the final flame height H3 on the HTPB thickness D are obtained by analyzing and fitting combustion processes of multiple AP/HTPB propellants, namely, r(b) = 0.44D(4)-0.08D(3)+0.6D(2)-1.72D+2.93 and H-3 = -0.04D(3) +1.22D(2) -13.07D+67.73.

引用

页码：1037 / 1046

页数：10

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