Research on flow resistance calculation of propellant management device for aerospace surface tension tank

The aerospace propulsion system has put forward an urgent demand for high-density, low-pressure storage, and in-orbit reusable propellant tanks for low-temperature propellants. The surface tension management technology of low-temperature propellants has become the main factor affecting their in-orbit applications. This paper introduces the technological progress of channel type surface tension propellant management devices in the aerospace field both domestically and internationally, with a focus on the technical application of low-temperature propellant surface tension propellant management devices. The internal flow resistance of a low-temperature liquid krypton fully managed surface tension propellant tank was calculated and analyzed. Based on the establishment of a mathematical model for the internal flow resistance distribution of the propellant management device, a detailed analysis was conducted on the flow situation of each part. The flow resistance distribution of each part of the propellant management device was obtained under various states and flow conditions, as well as the relationship between the flow resistance distribution of the management device and the total flow rate.