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Numerical simulation of liquid sloshing phenomena in partially filled containers

Numerical simulation of liquid sloshing phenomena in partially filled containers
Numerical simulation of liquid sloshing phenomena in partially filled containers
In the simulation of the dynamic load excited by sloshing in a partially filled tank, appropriate boundary conditions need imposing to calculate the impact pressure. Traditionally, a thin artificial buffer zone is adopted near the tank ceiling and a linear combination of free surface dynamic and rigid wall boundary conditions are imposed inside the buffer zone. This investigation demonstrates that no special treatment is needed to describe the free surface, because a two-fluid approach based on a level set method is used to solve the RANS equations in both water and air regions and the interface is treated as a variation of the fluid properties. All the boundary conditions adopted are those usually accepted in solutions of Navier-Stokes or Euler equations. Sloshing in a rectangular tank excited by a horizontal harmonic motion is assessed numerically at different filling levels and excitation frequencies. The dependency of numerical solution on grid resolution, time step size and the interface thickness are investigated. Further, numerical tests are conducted for a rectangular tank with both 45° and 60° chamfered ceiling corners subject to a harmonic rolling motion. The comparison of computed results with experimental data show the developed numerical method is capable of the simulation of dynamic pressure loads exerted on the tank walls and ceiling excited by fluid sloshing.
0045-7930
830-842
Chen, Y.G.
79562a70-7033-4e3e-a140-21b677505eca
Djidjeli, K.
94ac4002-4170-495b-a443-74fde3b92998
Price, W.G.
b7888f47-e3fc-46f4-9fb9-7839052ff17c
Chen, Y.G.
79562a70-7033-4e3e-a140-21b677505eca
Djidjeli, K.
94ac4002-4170-495b-a443-74fde3b92998
Price, W.G.
b7888f47-e3fc-46f4-9fb9-7839052ff17c

Chen, Y.G., Djidjeli, K. and Price, W.G. (2009) Numerical simulation of liquid sloshing phenomena in partially filled containers. Computers & Fluids, 38, 830-842. (doi:10.1016/j.compfluid.2008.09.003).

Record type: Article

Abstract

In the simulation of the dynamic load excited by sloshing in a partially filled tank, appropriate boundary conditions need imposing to calculate the impact pressure. Traditionally, a thin artificial buffer zone is adopted near the tank ceiling and a linear combination of free surface dynamic and rigid wall boundary conditions are imposed inside the buffer zone. This investigation demonstrates that no special treatment is needed to describe the free surface, because a two-fluid approach based on a level set method is used to solve the RANS equations in both water and air regions and the interface is treated as a variation of the fluid properties. All the boundary conditions adopted are those usually accepted in solutions of Navier-Stokes or Euler equations. Sloshing in a rectangular tank excited by a horizontal harmonic motion is assessed numerically at different filling levels and excitation frequencies. The dependency of numerical solution on grid resolution, time step size and the interface thickness are investigated. Further, numerical tests are conducted for a rectangular tank with both 45° and 60° chamfered ceiling corners subject to a harmonic rolling motion. The comparison of computed results with experimental data show the developed numerical method is capable of the simulation of dynamic pressure loads exerted on the tank walls and ceiling excited by fluid sloshing.

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More information

Submitted date: November 2007
Published date: April 2009
Organisations: Fluid Structure Interactions Group

Identifiers

Local EPrints ID: 63500
URI: http://eprints.soton.ac.uk/id/eprint/63500
ISSN: 0045-7930
PURE UUID: 1c69b661-e9ee-4c69-ba67-79b3047737b3

Catalogue record

Date deposited: 14 Oct 2008
Last modified: 15 Mar 2024 11:40

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Contributors

Author: Y.G. Chen
Author: K. Djidjeli
Author: W.G. Price

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