航天器环境工程2024，Vol.41Issue(2)：129-137,9.DOI:10.12126/see.2023151
基于滑移流模型的真空容器内羽流流场数值仿真
Numerical simulation of plume flow field in vacuum chamber based on slip flow model
摘要
Abstract
Predicting the aerodynamic and thermal distributions of the plume in vacuum chamber is one of the key prerequisites for developing a large-scale vacuum plume test scheme and improving the simulation effectiveness of the experimental environment.For the ignition test of China's Chang'e-7 leaper,a slip flow computational fluid dynamics(CFD)method taking the adsorption of H2O and CO2 into consideration was used to simulate the initial changes in the spatial-temporal distributions of pressure,temperature and gas composition of the plume flow field in a vacuum chamber.The results indicate that both the temperature and mass fraction of H2O component in the flow field increase rapidly and then decrease smoothly,while the pressure fluctuates upward over time.Based on this conclusion,experimental optimization suggestions are proposed.The method provides a new approach for simulating the plume flow field in vacuum chamber,which may support for the subsequent design of relevant test schemes.关键词
真空容器/羽流流场/滑移边界/计算流体力学/数值仿真Key words
vacuum chamber/plume flow field/slip boundary/computational fluid dynamics/numerical simulation引用本文复制引用
高文,林博颖,吴东亮,李西园,陶东兴,柳晓宁,杨晓宁..基于滑移流模型的真空容器内羽流流场数值仿真[J].航天器环境工程,2024,41(2):129-137,9.基金项目
北京市科技新星项目(编号:Z211100002121077) （编号:Z211100002121077）
