带均压腔燃气发生器水下排水研究
发布时间：2018-11-27 18:11
【摘要】：带均压腔燃气发生器初始水下工作为复杂高压排水过程,快速经历超临界、临界、亚临界等多个状态,不同于正常工作状态,严重影响系统承载能力、药柱燃烧。为研究该过程特性及影响,基于理论和CFD计算建立了覆盖全程的仿真方法,通过了特定系统试验验证,并分析了一般模型水下通气排水过程,研究获得了典型参数对初始排水过程的影响。结果表明:带均压腔燃气发生器初始排水过程,系统压力大幅提高,调整均压腔容积、充水比例、排水孔直径等参数可有效改善工作状态。
[Abstract]:The initial underwater operation of the gas generator with an equal-pressure cavity is a complicated high-pressure drainage process, which rapidly experiences several states, such as supercritical and sub-critical, which is different from normal working state, which seriously affects the system's bearing capacity and the combustion of the charge column. In order to study the characteristics and effects of the process, a simulation method for the whole process is established based on the theory and CFD calculation. The simulation method is verified by a specific system test, and the general model of underwater ventilation drainage process is analyzed. The influence of typical parameters on the initial drainage process is studied. The results show that the system pressure is greatly increased during the initial drainage process of the gas generator with a uniform pressure chamber, and the working state can be improved effectively by adjusting the volume of the pressure equal chamber, the ratio of water filling and the diameter of the drainage hole.
【作者单位】： 中国运载火箭技术研究院研究发展中心;
【基金】：国家国际科技合作专项资助(No.2015DFA70840)
【分类号】：U664.1
，
本文编号：2361634
[Abstract]:The initial underwater operation of the gas generator with an equal-pressure cavity is a complicated high-pressure drainage process, which rapidly experiences several states, such as supercritical and sub-critical, which is different from normal working state, which seriously affects the system's bearing capacity and the combustion of the charge column. In order to study the characteristics and effects of the process, a simulation method for the whole process is established based on the theory and CFD calculation. The simulation method is verified by a specific system test, and the general model of underwater ventilation drainage process is analyzed. The influence of typical parameters on the initial drainage process is studied. The results show that the system pressure is greatly increased during the initial drainage process of the gas generator with a uniform pressure chamber, and the working state can be improved effectively by adjusting the volume of the pressure equal chamber, the ratio of water filling and the diameter of the drainage hole.
【作者单位】： 中国运载火箭技术研究院研究发展中心;
【基金】：国家国际科技合作专项资助(No.2015DFA70840)
【分类号】：U664.1
，
本文编号：2361634
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