跨大气层和空间区域飞行器的液体推进剂管理

根据大气层飞行环境与机动飞行特点,以及空间飞行环境与液体推进剂特点,分析了跨大气层和空间区域飞行器的保证重力场和失重状态下均无夹气液体输送、控制液体推进剂质心位移、剩余推进剂空间排放和重复使用等液体推进剂管理技术要求。阐述了相应的关键技术,如包括无夹气输送、液体质心位移控制、失重状态下的流体动力、参数确定和结构设计等管理模式确定,以及包括模型参数确定、模型、状态模拟和验证等的管理模式试验。

Research on Liquid Propellant Management for Cross Atmospheric Layer and Space Vehicle

The characteristics of propellant management for the cross atmospheric layer and space vehicle,such as propellant feed without bubble in both gravity field and gravity-free field,centroid displacement control of the liquid propellant,propellant residual expulsion in flying and reusing,were analyzed according to the environment and maneuvering flight of atmospheric layer flying and the environment and propellant features in this paper.The relative key technologies were presented,for example management model including propellant feed without bubble,propellant centroid control,flow dynamic in gravity-free field,parameter determination and construction design and management model test of parameter determination,model,state simulation and approval.