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对运载火箭预增压阶段贮箱的增压过程多种状态的增压气体出流形式进行物理建模和仿真。结果表明,不同贮箱增压气体出流形式对气枕空间的温度及压力分布有较大影响,在设计出流形式时,需要对出流的管路或扩散器进行结构优化。
Physical modeling and simulation were carried out for various forms of outflow of pressurized gas during the pressurization of the tank during the pre-boosting phase of the launch vehicle. The results show that the outlet flow of pressurized gas in different reservoirs has a great influence on the temperature and pressure distribution in the air pillow space. When the flow form is designed, the outflow pipe or diffuser needs to be structurally optimized.