固体火箭技术2012，Vol.35Issue(4)：474-478,484,6.
燃烧室对接狭缝设计参数对压强振荡的影响研究
Effect of internal joint design parameters on pressure oscillation in combustion chamber
王建儒 1何国强 1许团委 2田维平2
作者信息
- 1. 西北工业大学航天学院,西安710072
- 2. 中国航天科技集团公司四院四十一所,西安710025
- 折叠
摘要
Abstract
Aiming at revealing the relation between the internal joint width and the pressure oscillation for SSRM( Segmented Solid Rocket Motor) ,a two-dimensional axisymmetric model was built. LES( Large Eddy Simulation) was carried out for six different expansion ratio. Finally, pressure evolution and its FFT( Fast Fourier Transform ) results were analyzed. Results indicate that the amplitude of pressure oscillation displays a decrease tendency as the expansion ratio increasing,but the frequency of pressure oscillation is unchanged. The result has gained validation through SSRM static test.关键词
分段式固体发动机/压强振荡/大涡模拟/突扩比Key words
segmented solid rocket motor/pressure oscillation/large eddy simulation/expansion ratio分类
航空航天引用本文复制引用
王建儒,何国强,许团委,田维平..燃烧室对接狭缝设计参数对压强振荡的影响研究[J].固体火箭技术,2012,35(4):474-478,484,6.
