Numerical simulation of liquid sloshing in LNG tanks using
a compressible two-fluid flow model
Numerical simulation of liquid sloshing in LNG tanks using
a compressible two-fluid flow model
In this investigation the Reynolds-Averaged Navier-Stokes (RANS)
equations are modified to account for variable density and viscosity of
the two-fluids flow (i.e. water-air), assuming both fluids compressible.
By introducing a preconditioner, the governing equations in terms of
primitive variables are solved for both fluids in a unified manner. The
non-conservative implicit Split Coefficient Matrix Method (SCMM) is
modified to approximate convective flux vectors in the dual time
formulation. The free surface waves inside the tank, due to sloshing, are
implicitly captured by using a level set approach.
The method is illustrated through applications to rectangular and
chamfered tanks subject to sway or roll motions at different filling
levels and excitation conditions (i.e. amplitude and frequency of
oscillation). Comparisons are made between calculated and
experimental pressures, where available.
Sloshing, impact pressure, compressible interface
flow, level set method, LNG tank
9781880653531
221-230
Chen, Y.G.
79562a70-7033-4e3e-a140-21b677505eca
Price, W.G.
b7888f47-e3fc-46f4-9fb9-7839052ff17c
Temarel, P.
b641fc50-5c8e-4540-8820-ae6779b4b0cf
June 2009
Chen, Y.G.
79562a70-7033-4e3e-a140-21b677505eca
Price, W.G.
b7888f47-e3fc-46f4-9fb9-7839052ff17c
Temarel, P.
b641fc50-5c8e-4540-8820-ae6779b4b0cf
Chen, Y.G., Price, W.G. and Temarel, P.
(2009)
Numerical simulation of liquid sloshing in LNG tanks using
a compressible two-fluid flow model.
19th (2009) International Offshore and Polar Engineering Conference (ISOPE-2009), Osaka, Japan.
21 - 26 Jun 2009.
.
Record type:
Conference or Workshop Item
(Other)
Abstract
In this investigation the Reynolds-Averaged Navier-Stokes (RANS)
equations are modified to account for variable density and viscosity of
the two-fluids flow (i.e. water-air), assuming both fluids compressible.
By introducing a preconditioner, the governing equations in terms of
primitive variables are solved for both fluids in a unified manner. The
non-conservative implicit Split Coefficient Matrix Method (SCMM) is
modified to approximate convective flux vectors in the dual time
formulation. The free surface waves inside the tank, due to sloshing, are
implicitly captured by using a level set approach.
The method is illustrated through applications to rectangular and
chamfered tanks subject to sway or roll motions at different filling
levels and excitation conditions (i.e. amplitude and frequency of
oscillation). Comparisons are made between calculated and
experimental pressures, where available.
Text
2009-YHK-03.pdf
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More information
Published date: June 2009
Venue - Dates:
19th (2009) International Offshore and Polar Engineering Conference (ISOPE-2009), Osaka, Japan, 2009-06-21 - 2009-06-26
Keywords:
Sloshing, impact pressure, compressible interface
flow, level set method, LNG tank
Organisations:
Fluid Structure Interactions Group
Identifiers
Local EPrints ID: 68614
URI: http://eprints.soton.ac.uk/id/eprint/68614
ISBN: 9781880653531
PURE UUID: be0e384b-651e-417d-a78f-2a06f73ea983
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Date deposited: 09 Sep 2009
Last modified: 14 Mar 2024 02:37
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Contributors
Author:
Y.G. Chen
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