Validation of Slosh Modeling Approach Using STAR-CCM+

Benson, David J ; Ng, Wanyi

关键词: COMPUTATIONAL FLUID DYNAMICS;    CYLINDRICAL TANKS;    LIQUID ROCKET PROPELLANTS;    LIQUID SLOSHING;    PROPELLANT TANKS;    PROPELLANTS;    SPACECRAFT CONTROL;    ATTITUDE CONTROL;    GRID GENERATION (MATHEMATICS);    SPACECRAFT LAUNCHING;    TUMBLING MOTION;   

RP-ID  :  GSFC-E-DAA-TN53736

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来源: NASA Technical Reports Server

【 摘 要 】

Without an adequate understanding of propellant slosh, the spacecraft attitude control system may be inadequate to control the spacecraft or there may be an unexpected loss of science observation time due to higher slosh settling times. Computational fluid dynamics (CFD) is used to model propellant slosh. STAR-CCM+ is a commercially available CFD code. This paper seeks to validate the CFD modeling approach via a comparison between STAR-CCM+ liquid slosh modeling results and experimental, empirically, and analytically derived results. The geometries examined are a bare right cylinder tank and a right cylinder with a single ring baffle.