Free Vibration Sloshing Analysis in Axisymmetric Baffled Containers under Low-Gravity Condition

The free vibrations analysis of liquid sloshing is carried out for arbitrary axisymmetric containers under low-gravity condition using boundary element method. A potential flow theory is used to model the flow field and the free-surface Laplace-Young equation is used to model the surface tension eff...

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Bibliographic Details
Published in:Microgravity science and technology 2015-03, Vol.27 (2), p.97-106
Main Authors: Ebrahimian, M., Noorian, M. A., Haddadpour, H.
Format: Article
Language:English
Subjects:
Aerospace Technology and Astronautics
Axisymmetric
Baffles
Classical and Continuum Physics
Contact
Containers
Engineering
Free surfaces
Free vibration
Liquids
Mathematical analysis
Mathematical models
Original Article
Potential flow
Resonant frequency
Space Exploration and Astronautics
Space Sciences (including Extraterrestrial Physics
Surface tension
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Summary:The free vibrations analysis of liquid sloshing is carried out for arbitrary axisymmetric containers under low-gravity condition using boundary element method. A potential flow theory is used to model the flow field and the free-surface Laplace-Young equation is used to model the surface tension effect. The obtained governing equations are solved using eigenanalysis techniques to determine the natural frequencies and mode shapes of the sloshing liquid. The results for a circular cylindrical container are compared to the analytical values and very good agreement is achieved for the slipping and anchored contact line assumptions. Furthermore, some baffled containers are also analysed and the effects of baffles on the sloshing frequencies under low and zero gravity conditions are investigated and some conclusions are outlined.
ISSN:0938-0108
1875-0494
DOI:10.1007/s12217-015-9414-4