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網(wǎng)幕通道式貯箱在軌重定位過程的蓄流穩(wěn)定性研究

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中圖分類號:V19 文獻(xiàn)標(biāo)志碼:A

DOI: 10.7652/xjtuxb202508005 文章編號:0253-987X(2025)08-0042-11

Study on the Liquid Retention Stability During On-Orbit Reorientation Processof Screen Channel Tank

WANG Yunlong1,MA Yuan12, ZHANG Rongda1 ,WANG Kang1,LI Yanzhongl (1.Department of Energy and Power Engineering,Xi'an Jiaotong University,Xi'an 71oo49,China; .MOE Key Laboratory of Cryogenic Technologyand Equipment,Xi'an Jiaotong University,Xi'an 710049,China)

Abstract: To clarify the working characteristics and propellant management capabilities of screen channel tanks during actual flight,a three-dimensional simulation model of a specific screen channel tank is established based on the volume of fluid model and the continuous surface tension model. The reorientation process of the tank is simulated under different filling rates and disturbance conditions. The distribution patterns of gas-liquid phases and the changes in the center of mass of the propellant during the reorientation process is examined,comparing the flow management capabilities of the screen channel tank with those of a vane-type tank. The results indicate that,in the face of varying filing rates and disturbance conditions, the screen channel tank exhibits greater liquid retention stability than the vane-type tank, particularly under a low filling rate of 5% ,where localized flow failure is less likely to occur. Under low filling conditions, the gas-liquid phase distribution during the reorientation process is primarily constrained by the surface tension of the screen channel structure. As the filling rate increases, the impact of external disturbances on the gas-liquid phase distribution during the reorientation process gradually intensifies,leading to an increase in the amplitude of center of mass oscilations. For initial conditions where the liquid phase is at the bottom,the screen channel tank responds most sensitively to reverse acceleration disturbances,while overcoming the efects of lateral acceleration disturbances is more challenging. This research provides a reference for the engineering application and design optimization of screen channel tanks in future aerospace missions.

Keywords: propellnt management device; screen channel tank;disturbance condition; reorientation;liquid retention stability

空間環(huán)境下,在微重力、表面張力等弱力場作用下,推進(jìn)劑貯箱內(nèi)的氣液分布極不穩(wěn)定,很可能無法滿足控壓排氣、發(fā)動(dòng)機(jī)點(diǎn)火、在軌加注等任務(wù)對單相氣體或液體推進(jìn)劑的排放及輸送需求。(剩余16125字)

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