| 燃气发生器氢腔均流改进设计及试验研究 |
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| 引用本文： | 王晓丽.燃气发生器氢腔均流改进设计及试验研究[J].火箭推进,2011,37(2):38-42. |
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| 作者姓名： | 王晓丽 |
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| 作者单位： | 北京航天动力研究所,北京,100076 |
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| 摘 要： | 为解决某型号液体火箭发动机燃气发生器热试车后氢腔内过滤网和骨架的破损问题,在不改变燃气发生器功能和性能、不影响发动机其它系统功能的前提下,设计了七种均流替代方案.采用Navies-Stokes方程数值模拟七种方案的氢腔内流动状态,计算分析了各种方案的氢喷嘴流量的均匀性,综合考虑承载能力,选定了一种有较好均流效果的均流环...
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| 关 键 词： | 液体火箭发动机 燃气发生器 氢腔流动分析 均流环设计 |
Improved current-sharing design and experimental investigation for hydrogen chamber of gas generator |
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| WANG Xiao-li.Improved current-sharing design and experimental investigation for hydrogen chamber of gas generator[J].Journal of Rocket Propulsion,2011,37(2):38-42. |
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| Authors: | WANG Xiao-li |
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| Institution: | WANG Xiao-li (Beijing Aerospace Propulsion Institute, Beijing 100076, China) |
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| Abstract: | To solve the problem of cracking of the filter-screen and skeleton within hydrogen chamber of the gas generator after test of certain liquid rocket engine, seven current-sharing schemes are designed on the premise that the function and performance of the generator are not reduced. Through the calculation, analysis and simulation of the fluid dynamic status, flow uniformity and intensity of the seven design schemes; a current-sharing design with better structural intensity is chosen. Hydraulic test and test-driving are carried out for the modified generator successfully. The results manifest that the novel current-sharing design can play a role of sharing the flux of the hydrogen injector elements, enhance the capability of anti-startup pressure peak, and consequently, improve the stability of the generator. |
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| Keywords: | liquid rocket engine gas generator hydrogen chamber CFD current-sharing design |
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