Evaluation Method of C* Efficiency of Swirling-Oxidizer-Flow-Type Hybrid Rocket Engines
Evaluation Method of C* Efficiency of Swirling-Oxidizer-Flow-Type Hybrid Rocket Engines
复制标题
旋流氧化剂流式混合火箭发动机C*效率评估方法
DOI：
10.2322/jjsass.59.97
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发表时间：
2011
期刊：
影响因子：
--
通讯作者：
T. Sakurai
中科院分区：
文献类型：
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作者：
S. Yuasa;N. Shiraishi;M. Sakamoto;Chinatsu Sezaki;K. Hirata;T. Sakurai
特征速度\(C^{*}\)是从均匀压力场中的一维流动假设推导出来的，通常使用在燃烧室壁上测量的燃烧室压力来评估。在旋流氧化剂流型混合火箭发动机中，由于旋流离心力场中壁面压力增加，有时会测量到超过\(1.0\)的\(C^{*}\)效率。由此可知，当给出CF（收敛因子）效率时，比冲效率有助于在不使用燃烧室压力的情况下准确评估\(C^{*}\)效率。通过使用带有最佳扩张喷管的旋流氧化剂流型混合火箭发动机进行燃烧试验，证实了这种\(C^{*}\)效率的评估方法是合适且可行的。
The characteristic velocity C* is derived from the assumption of one-dimensional flow in a uniform pressure field, and is usually evaluated using a combustion chamber pressure measured on the chamber wall. In the swirling-oxidizer-flow-type hybrid rocket engines, the C* efficiency in excess of 1.0 was sometimes measured due to an increased wall pressure in the centrifugal force field of the swirling flow. It was induced that the specific impulse efficiency was useful to evaluate the C* efficiency accurately without using the combustion chamber pressure when the CF efficiency was given. This evaluation method of the C* efficiency was confirmed to be appropriate and available by the burning tests using the swirling-oxidizer-flow-type hybrid rocket engines with optimum expanding nozzles.
DOI：
10.2514/6.2001-3537
发表时间：
2001-07
期刊：
--
影响因子：
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作者：
S. Yuasa;Kengo Yamamoto;Hitoshi Hachiya;K. Kitagawa;Youichi Oowada
通讯作者：
S. Yuasa;Kengo Yamamoto;Hitoshi Hachiya;K. Kitagawa;Youichi Oowada