| 固体燃料冲压发动机燃烧室燃烧特性数值模拟 |
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| 引用本文： | 李泽勇,郭健,王振国.固体燃料冲压发动机燃烧室燃烧特性数值模拟[J].弹道学报,2009,21(1). |
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| 作者姓名： | 李泽勇 郭健 王振国 |
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| 作者单位： | 国防科学技术大学,航天与材料工程学院,长沙,410073 |
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| 摘 要： | 采用12组分、17个化学反应的模型和二阶矩湍流燃烧模型,通过计算药柱表面热传导率,得到了燃面退移速率,对固体燃料冲压发动机燃烧室内部的燃烧流动进行了数值模拟,分析了空气流量、空气总温和入口直径对燃烧室温度分布、C4H6分布和燃面退移速率的影响.分析表明,减小空气入口直径、增加空气流量和总温都会使燃面退移速率增加.
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| 关 键 词： | 固体燃料冲压发动机 燃烧室 热传导率 燃面退移速率 二阶矩湍流燃烧模型 |
Numerical Simulation of Combustion Characteristic in Combustion Chamber of SFRJ |
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| LI Ze-yong,GUO Jian,WANG Zhen-guo.Numerical Simulation of Combustion Characteristic in Combustion Chamber of SFRJ[J].Journal of Ballistics,2009,21(1). |
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| Authors: | LI Ze-yong GUO Jian WANG Zhen-guo |
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| Affiliation: | School of Aerospace and Material Engineering;NUDT;Changsha 410073;China |
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| Abstract: | The 12-species 17-steps model and the second-moment turbulent combustion model were used,and the heat conductivity of laminar sub-layer on surface of grain was calculated to achieve the fuel regression rate.The numerical simulation of the combustion and flow inside the combustion chamber of Solid Fuel Ramjet(SFRJ) was carried out.The effects of air flux,total temperature of air and inlet diameter on temperature distribution in combustion chamber,C4H4 distribution and fuel regression rate were analyzed.The r... |
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| Keywords: | SFRJ combustion chamber heat conductivity fuel regression rate second-moment turbulent combustion model |
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