端面燃焼式ハイブリッドロケットの基礎研究:その1 燃焼安定性

端面燃焼式ハイブリッドロケットの基礎研究:その1 燃焼安定性
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端燃式混合火箭基础研究:第1部分燃烧稳定性

DOI:
10.2322/jjsass.49.33
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发表时间:
2001
期刊:
Journal of The Japan Society for Aeronautical and Space Sciences
影响因子:
--
通讯作者:
勲 工藤
勲 工藤
中科院分区:
--
文献类型:
--
作者:
隆博 加藤;望 橋本;晴紀 永田;勲 工藤

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为克服传统固液火箭燃料燃烧效率低、燃烧过程中O/F漂移等缺点,提出了一种新型固液火箭燃料。燃料是氧化剂气体在其中流动的纤维床。出口表面出现稳定的扩散火焰。以往的研究表明,随着环境压力的增加,燃料的回归速率会突然增加。这种突然增加归因于燃料纤维之间的火焰传播。为了明确扩散火焰能传播到的燃料间隙空间的极限,进行了实验研究。通过实验得到了氧气流速和环境压力对临界间隙空间的影响规律。利用这一结果,必要的条件,以实现稳定的燃烧与这种新的燃料形式。
To overcome defects of conventional hybrid rockets such as low combustion efficiency and the O/F shift during the combustion, the authors have proposed a new form of hybrid rocket fuel. The fuel is a fibrous bed in which oxidizer gas flows. Stable diffusion flame appears at the exit surface. Previous researches show that sudden increase of the fuel regression rate occurs with the increase of ambient pressure. This sudden increase is attributed to the flame spreading between fuel fibers. To clarify the limit of fuel gap space the diffusion flame can spread into, experimental study was made. Critical gap space, which means the minimum gap space the diffusion flame can spread into, was obtained experimentally as a function of oxygen gas flow velocity and ambient pressure. Using this result, necessary conditions to realize a stable combustion with this new fuel form are shown.