Control Techniques of High Frequency Combustion Instability for High Thrust LOX/Kerosene Staged Combustion Cycle engine

Paper number

IAC-11,C4,3,22,x10498

Author

Mr. Longfei Li, Xi'an Aerospace Propulsion Institute, China

Coauthor

Dr. Wang Feng, Northwestern Polytechnical University, China

Coauthor

Prof. Jianhua CHEN, Xi'an Aerospace Propulsion Institute, China

Coauthor

Prof. Zhanguo LIU, Xi'an Aerospace Propulsion Institute, China

Year

2011

Abstract

the primary available control techniques and principles of high frequency combustion instability for high thrust LOX/Kerosene staged combustion cycle engine,such as gas-liquid coaxial injector, baffles and the perforated gas distribution plate were discussed. Acoustic modeling tests of single injector and baffle was respectively conducted. Based on the similarity theory and the working characteristic of LOX/Kerosene staged combustion cycle engine, The single-injector hot modeling equipment was established and the test was conducted. The boundaries and the margins of high frequency combustion instability under different retractive lengths were obtained. 
    Finally a control scheme for high thrust LOX/Kerosene staged combustion cycle engine of manned lunar heavy launch vehicle was put forward. The result show that the reasonable configurations of injector and baffle will play the important roles to control high frequency combustion instability. 

keywords: liquid propulsion rocket engine; high frequency combustion instability; control techniques.

Abstract document

IAC-11,C4,3,22,x10498.brief.pdf

Manuscript document

IAC-11,C4,3,21,x10498.pdf (🔒 authorized access only).

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