|Table of Contents|

Improved current-sharing design and experimental investigation for hydrogen chamber of gas generator(PDF)

《火箭推进》[ISSN:1672-9374/CN:CN 61-1436/V]

Issue:
2011年02期
Page:
38-42
Research Field:
研究与设计
Publishing date:

Info

Title:
Improved current-sharing design and experimental investigation for hydrogen chamber of gas generator
Author(s):
WANG Xiao-li
Beijing Aerospace Propulsion Institute, Beijing 100076, China
Keywords:
liquid rocket engine;  gas generator;  hydrogen chamber CFD;  current-sharing design
PACS:
V434-34
DOI:
-
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.

References:

[1]SANFORD Gordon, BONNIE J McBcide. Computer program for calculation of complex chemical equilibrium compositions, rocket performance, incident and reflected shocks and Chapman-Jouguet detonations, N73-17724[R]. [S. l.]: [s. n.], 1973.
[2]NICHOLLS J A, WILKINSON H R, MORRISON R B. Intermittent detonation as a thrust producing mechanism [J]. Jet Propulsion, 1957, 27: 534-541.
[3]陈旭扬. 燃气发生器起动压力峰研究[J]. 航天推进与动力, 2007, 4(1): 1-4.
[4]李清廉, 李庆, 王振国. 氧气/醇类燃气发生器起动过程试验研究[J]. 火箭推进, 2010, 36 (1): 13-18.
[5]王福军. 计算流体动力学分析[M]. 北京: 清华大学出版社, 2005.
[6]杨青真, 王红梅, 张银波. 液体火箭发动机氧腔流动分析及均流板设计研究[J]. 宇航学报, 2005, 6 (26): 698-701.
[7]石亦平, 周玉蓉. Abaqus有限元分析实例详解[M]. 北京: 机械工业出版社, 2005.

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