基于微重力开孔槽道自由界面流动理论的卫星板式贮箱优化设计

板式贮箱因其质量轻、可靠性高、成本低、可重复使用等优势得到了越来越广泛的应用。但是板式贮箱的工作原理决定了其无法在地面重力环境下进行性能测试，其设计合理性主要依靠充分的理论分析和微重力实验验证。因此尽管板式贮箱结构简单，但其设计和测试难度远大于其他类型的贮箱。本项目以板式贮箱设计为背景，以提升其工作性能为目的，针对来源于板式贮箱推进剂管理过程中的开孔槽道自由界面流动问题展开深入研究，揭示开孔参数、槽道结构、物性参数等耦合作用下的自由界面流动特性。基于开孔槽道自由界面流动理论研究，开展板式贮箱方案优化设计，并通过CFD数值仿真和微重力实验验证优化设计方法的有效性。本项目的实施，将进一步丰富和发展微重力自由界面流动机理研究，为板式贮箱设计提供理论支撑，对于提高板式贮箱设计水平、缩短研制周期、降低贮箱开发成本具有工程应用价值。

The vane-type tank is widely used because of its advantages of light weight, high reliability, low cost and reusability. However, the vane-type tank cannot be tested on the ground, and its design rationality mainly depends on the full theoretical analysis and microgravity experiment verification. Therefore, although the structure of vane-type tank is simple, its design and test are much more difficult than other types of tanks. In this project, based on the design of vane-type tank, in order to improve its working performance, in-depth research on the free surface flow of perforated channel from the propellant management process of vane-type tank is carried out, and the free surface flow characteristics under the coupling effect of perforated parameters, channel structure and physical parameters are revealed. Based on the theoretical study of free surface flow in perforated channels, the optimization design of vane-type tank is carried out, and the effectiveness of the optimization design method is verified by CFD numerical simulations and microgravity experiments. The implementation of this project will further enrich and develop the research of free surface flow mechanism, provide theoretical support for the design of vane-type tank, and have engineering application value for improving the design level of vane-type tank, shortening the development cycle and reducing the development cost of the tank.