Capillary Flow in the Vane-Type Surface Tension Tank: Drop Tower Test Results

Li, Jing Hao; Chen, Xiao Qian; Huang, Yixin

doi:10.4028/www.scientific.net/amm.224.325

Cited by 5 publications

(1 citation statement)

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“…Bolleddula et al [19] investigated the capillary flow phenomena using drop towers and concluded that compound capillary flows occurred spontaneously and simultaneously over local and global length scales. Li et al [20] studied the capillary flow in an asymmetric interior corner in a vane-type surface tension tank. Zhuang et al [21] conducted an experiment on the fluid storage characteristic of a refillable reservoir in microgravity.…”

Section: Introductionmentioning

confidence: 99%

Testing Liquid Distribution in a Vane-Type Propellant Tank under Conditions of Microgravity Using a Drop Tower Test

Liu¹,

Li²,

Wen³

et al. 2020

International Journal of Aerospace Engineering

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Propellant management devices (PMDs) are a key component used to manage liquid propellant in a propellant tank under zero gravity conditions. A microgravity drop tower test system was established to investigate the performance of a PMD. A single module was used for the experiments, and the microgravity level was less than 3 × 10 − 3 g . Anhydrous ethanol was used as the simulate liquid. Different volume fractions of liquid were used to study the influence of the PMD on performance management. Experiments were conducted with the position of the container oriented in different directions. Changes in the gas-liquid interface were studied during the test. This kind of vane transports liquid through the rectangular area between the vane and the wall. The velocity flows along the vane of different liquid volume fractions in the tank were different at the beginning ( t < 0.8 s ) compared with the end of the test. The liquid relocation time was less than 0.8 s while the liquid volume fraction was larger than 25%. The liquid relocation time was prolonged when the liquid volume fraction was less than 25%. The liquid climbing height along the vane under microgravity increased as the volume fraction of liquid reduced. The climbing velocity of the liquid is half reduction when the liquid volume fraction is small. The time for the liquid transferred from the top of the tank to the liquid outlet can be obtained by climbing velocity. It shows that the maneuverability of the satellite decreases at the end of its life. The above results are applicable to all propellant tank with vertical vanes. These results provide a favorable reference for further optimized design of vertical vane-type propellant tanks.

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Section: Introductionmentioning

confidence: 99%