Abstract: In order to test and verify storage performance of vane type surface tension tank (STT), a model testing system is established and the microgravity drop tower tests are conducted based on experimental study of fluid storage and transportation behavior of propellant refillable reservoir (PRR). The rules of fluid storage and transportation of PRR in microgravity environment are obtained. The test results show that doublecone PRR have good liquid storage capacity more than cuniform PRR, and the doublecone PRR exhibits good liquid storage capacity with lateral acceleration. A rational design of PRR can effectively store liquid and control the velocity of liquid transportation. The test results offer a guideline for the optimization of newstyle vanetype PMD, and also provide a new method for fluid control in space environment.  

Key words: fluid management, drop tower test