TITLE:
Simulation Study of Solid Rocket Motor C/C Throat Liner Ablation Based on Two Regions
AUTHORS:
Guanneng Chen, Yihua Xu, Xiaojiang Zha, Hemeng Shi, Bing Liu
KEYWORDS:
Dual-Area Ablation Model, C/C Throat Liner, Ablation Environment, Ablation Program
JOURNAL NAME:
Journal of Power and Energy Engineering,
Vol.12 No.4,
April
17,
2024
ABSTRACT: Based on the ablation micro-morphological characteristics, thermo-chemical ablation mechanism, and mechanical stripping mechanism, a dual-region solid rocket motor C/C throat liner ablation model and physical model are established. The ablation program was written and the experimental data of 70 lb BATES engine platform was used for model validation. The relative errors between the simulation calculation results and the experimental results were −6.83% - 10.20%. The ablation program was applied to study the effects of combustion chamber temperature, pressure, oxidation component concentration, throat particle concentration and particle scouring angle on the nozzle throat liner, which provides a reference for the design of the nozzle throat liner and the estimation of solid rocket motor ablation.