Validation and Rules-of-Thumb for Computational Predictions of Liquid Slosh Dynamics

Musgrove, Grant O.; Coogan, Shane B.

doi:10.2514/6.2015-4076

Cited by 6 publications

(2 citation statements)

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“…Sloshing, which is the motion of a free-surface liquid in partially filled reservoirs, has been the subject of continuous study in aerospace science. [7][8][9][10][11][12][13][14][15][16][17][18][19] For space applications like satellites, fluid motion occurs mostly in a microgravity environment, whereas for aircraft or for launch vehicles, the range of acceleration force includes high gravity as well as low gravity. In an extreme case, conditions might cause premature engine shutdown 7 if the fuel motion is not properly accounted for in the design stage of the fuel system.…”

Section: Introductionmentioning

confidence: 99%

“…17 There are also a large number of practices using computational fluid dynamics (CFD) intended to solve liquid sloshing problems. In the study by Musgrove et al, 18 a series of studies using CFD to capture liquid sloshing dynamics in various single-tank configurations were introduced. Similarly, propellant sloshing has been studied recently for a rocket upper stage using both numerical and experimental studies.…”

Section: Introductionmentioning

confidence: 99%

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Modeling of fuel transport in pressure-fed systems with flow passage opening devices

2021

Proceedings of the Institution of Mechanical Engineers, Part G:

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This study presents a numerical model of a pressure-fed system with flow passage opening devices (FPODs) designed for an air vehicle with a high degree of maneuverability. The FPOD is a mechanical device that connects two separate fuel reservoirs and functions as a valve allowing liquid fuel to flow while minimizing the movement of pressurizing gas from upstream fuel tanks into downstream fuel tanks. A reduced-order model for the fuel motion in an annular fuel tank was developed to configure the depth and inclination angle of the free fuel surface on the cross-sectional plane of an annular fuel tank under accelerating conditions during flight. Furthermore, a newly proposed model that reflects the dynamic characteristics of the FPOD is used to determine the fluid type that is transported through the device. A simulation example shows that the full numerical model captures changes of the fuel transport condition over time in a complete pressure-fed system of annular fuel tanks with FPODs subject to acceleration.

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