| 翼柱形药柱发动机点火瞬态三维数值模拟 |
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| 引用本文： | 独娟子,余贞勇,何景轩.翼柱形药柱发动机点火瞬态三维数值模拟[J].固体火箭技术,2009,32(2). |
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| 作者姓名： | 独娟子 余贞勇 何景轩 |
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| 作者单位： | 中国航天科技集团公司四院四十一所,西安,710025 |
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| 摘 要： | 采用流体计算软件(Fluent),通过用户自定义函数(UDF),考虑了燃烧室瞬时压强变化的影响,对某固体火箭发动机点火瞬态内流场进行了三维模拟,得出了点火瞬态头部压强一时间变化曲线.结果表明,堵盖打开前燃烧室压强振荡1次,堵盖打开后燃烧室压强振荡3次;随着点火燃气不断加入,燃烧室压强从头至尾呈现先弱后强的变化趋势.该方法能较好地预示点火瞬态的启动特性.
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| 关 键 词： | 固体火箭发动机 点火瞬态 数值模拟 |
Numerical simulation of SRM with finocyl grain during ignition transient |
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| DU Juan-zi,YU Zhen-yong,HE Jing-xuan.Numerical simulation of SRM with finocyl grain during ignition transient[J].Journal of Solid Rocket Technology,2009,32(2). |
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| Authors: | DU Juan-zi YU Zhen-yong HE Jing-xuan |
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| Institution: | DU Juan-zi,YU Zhen-yong,HE Jing-xuan (The 41st Institute of the Fourth Academy of CASC,Xi'an 710025,China) |
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| Abstract: | By using software(Fluent)of fluid calculation and user definition function(UDF),and in consideratiun of the effect of transient pressure interior three dimensional flow field of a SRM with finocyl grain was simulated during ignition transient.They are the curves of pressure-time of transient ignition in head area was obtained.The result shows one pressure oscillation before rupture of seal diaphragm and three pressure oscillations after rupture of seal diaphragm isn combustion chamber,and a variety trend of... |
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| Keywords: | solid rocket motor ignition transient numerical simulation |
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