The purpose of this work is twofold: to present a computational strategy to simulate the dynamics of a rigid sphere during water sloshing and to validate the model with original experimental data. The numerical solution is obtained through the coupling between a two-fluid Navier-Stokes solver and a rigid solid dynamics solver, based on a Newton scheme. A settling sphere case reported in the literature is first analyzed to validate the numerical strategy by ascertaining the settling velocity. In addition, an experiment is carried out based on a sphere submerged into a communicating vessel subjected to sloshing. Experimental data are captured using image processing and statistically treated to provide sphere dynamics quantitative information. The effects of different classical models used to describe drag coefficients, added mass, and wall effects are considered in the study to evaluate their influence on the results. The numerical model provides results that are consistent with the physical data, and the trajectory analysis shows good agreement between the simulations and the experiments.
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August 2019
Research Article|
August 16 2019
Numerical and experimental study of the motion of a sphere in a communicating vessel system subject to sloshing
Esteban Zamora
;
Esteban Zamora
1
Centro de Investigación de Métodos Computacionales (CIMEC), Universidad Nacional del Litoral - CONICET
, Predio CONICET Santa Fe, Colectora Ruta Nac 168, Km 472, Paraje El Pozo, Santa Fe, Argentina
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Laura Battaglia
;
Laura Battaglia
a)
1
Centro de Investigación de Métodos Computacionales (CIMEC), Universidad Nacional del Litoral - CONICET
, Predio CONICET Santa Fe, Colectora Ruta Nac 168, Km 472, Paraje El Pozo, Santa Fe, Argentina
a)Author to whom correspondence should be addressed: [email protected]
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Mario Storti
;
Mario Storti
1
Centro de Investigación de Métodos Computacionales (CIMEC), Universidad Nacional del Litoral - CONICET
, Predio CONICET Santa Fe, Colectora Ruta Nac 168, Km 472, Paraje El Pozo, Santa Fe, Argentina
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Marcela Cruchaga
;
Marcela Cruchaga
2
Departamento de Ingeniería Mecánica, Universidad de Santiago de Chile
, Av. Bernardo O’Higgins 3363, Santiago, Chile
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Roberto Ortega
Roberto Ortega
2
Departamento de Ingeniería Mecánica, Universidad de Santiago de Chile
, Av. Bernardo O’Higgins 3363, Santiago, Chile
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a)Author to whom correspondence should be addressed: [email protected]
Physics of Fluids 31, 087106 (2019)
Article history
Received:
April 05 2019
Accepted:
July 25 2019
Connected Content
A companion article has been published:
Studying the dynamics of a rigid body immersed in a sloshing fluid
Citation
Esteban Zamora, Laura Battaglia, Mario Storti, Marcela Cruchaga, Roberto Ortega; Numerical and experimental study of the motion of a sphere in a communicating vessel system subject to sloshing. Physics of Fluids 1 August 2019; 31 (8): 087106. https://doi.org/10.1063/1.5098999
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