Numerical analysis on thrust oscillation characteristics in solid rocket motor

Qiao Zhang*, Wan Xing Su, Jun Wei Li, Wei Chen Wang, Ning Fei Wang

*此作品的通讯作者

科研成果: 期刊稿件文章同行评审

1 引用 (Scopus)

摘要

In order to discover the mechanism of thrust oscillation characteristics in solid rocket motors, large-eddy simulation with Wall-Adapting Local Eddy-Viscosity subgrid-scale turbulence model is carried out to study the oscillating flow field induced by obstacle vortex shedding based on the subscale motor of P230. An integrated method is presented to describe the relationship between thrust amplitude and pressure amplitude. The results indicate that the ratio of thrust amplitude to pressure amplitude is mainly determined by the throat to port area ratio J, and it varies inversely as J. It is concluded that odd-order acoustic modes have the greatest contribution to the thrust amplitude, while the effect of even order acoustic modes on thrust amplitude can be ignored. The contribution of vortex-shedding to the thrust amplitude is less than that of the odd order acoustic modes, and it increases with the level of vortex sound coupling.

源语言英语
页(从-至)835-841
页数7
期刊Yuhang Xuebao/Journal of Astronautics
32
4
DOI
出版状态已出版 - 4月 2011

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Zhang, Q., Su, W. X., Li, J. W., Wang, W. C., & Wang, N. F. (2011). Numerical analysis on thrust oscillation characteristics in solid rocket motor. Yuhang Xuebao/Journal of Astronautics, 32(4), 835-841. https://doi.org/10.3873/j.issn.1000-1328.2011.04.020