Grid convergence analysis for numerical simulation of propellant reposition process in vane-type surface tension tank

doi:10.16708/j.cnki.1000-758X.2023.0056

Abstract

Abstract: In order to verify the performance of 2.67L satellite tank，a tank simulation model was established.The reposition processes of propellant at 50% and 60% filling rates were simulated.For improving the simulation efficiency，the concept of GCI index was introduced.The simulation results of 2.95million，6.25million，7.67million and 9.55million grids were compared to analyze the grid convergence of the simulation model.Through the comparison and verification of the simulation results，it was considered that the error of numerical simulation could converge and had high simulation efficiency when the number of grids was 6.25million.Based on the results，the capability of the tank propellant management device to suppress liquid sloshing was analyzed.And it is shown that the 2.67L satellite tank has good performance in anti-disturbance capability.

Key words: , satellite tank；simulation model；CFD；repositioning process；GCI index

DAI Wei, ZHANG Zhongyuan, LI Guangyu, HAN Wei. Grid convergence analysis for numerical simulation of propellant reposition process in vane-type surface tension tank[J]. Chinese Space Science and Technology, 2023, 43(4): 85-92.

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URL: https://journal26.magtechjournal.com/kjkxjs/EN/10.16708/j.cnki.1000-758X.2023.0056

https://journal26.magtechjournal.com/kjkxjs/EN/Y2023/V43/I4/85

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Grid convergence analysis for numerical simulation of propellant reposition process in vane-type surface tension tank

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