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氧化性粘合剂夹层三明治推进剂模型细观燃烧数值分析 被引量:1

NUMERICAL ANALYSIS ON COMBUSTION PROCESS OF LAYERED SANDWICH PROPELLANT WITH OXYGENATED BINDER MODEL IN MESO-SCALE
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摘要 复合固体推进剂在细观层面上呈现准周期性阵列,取推进剂基本"胞元"建立周期性三明治模型,可简化细观结构建模,又能反映复合推进剂燃烧的本质特征(如异相界面、多重火焰相互作用等).由于实际推进剂中氧化剂颗粒的粒径分布较广,纯粘合剂三明治模型只能计算单尺寸氧化剂颗粒分布情形.本文采用隐式颗粒建模方法,引入氧化性粘合剂夹层三明治推进剂模型表征AP/HTPB双模推进剂,考虑细氧化剂AP颗粒对细观燃烧规律的影响.通过数值实验,分析氧化性粘合剂三明治模型的火焰结构与燃面型面、燃面特性及燃速特性,并与纯粘合剂三明治推进剂细观燃烧规律进行对比分析. 复合固体推进剂在细观层面上呈现准周期性阵列,取推进剂基本"胞元"建立周期性三明治模型,可简化细观结构建模,又能反映复合推进剂燃烧的本质特征(如异相界面、多重火焰相互作用等).由于实际推进剂中氧化剂颗粒的粒径分布较广,纯粘合剂三明治模型只能计算单尺寸氧化剂颗粒分布情形.本文采用隐式颗粒建模方法,引入氧化性粘合剂夹层三明治推进剂模型表征AP/HTPB双模推进剂,考虑细氧化剂AP颗粒对细观燃烧规律的影响.通过数值实验,分析氧化性粘合剂三明治模型的火焰结构与燃面型面、燃面特性及燃速特性,并与纯粘合剂三明治推进剂细观燃烧规律进行对比分析.
出处 《固体力学学报》 CAS CSCD 北大核心 2010年第S1期21-28,共8页 Chinese Journal of Solid Mechanics
基金 国家安全重大基础研究(973-61338)资助
关键词 复合固体推进剂 三明治模型 氧化性粘合剂 燃烧 数值模拟 composite solid propellant sandwich model oxygenated binder combustion numerical analysis
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参考文献15

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