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Application of an improved semi-Lagrangian procedure to fully-nonlinear simulation of sloshing in non-wall-sided tanks
Highlights An improved semi-Lagrangian procedure is introduced for updating fully-nonlinear free surface. The improved procedure removes ‘vertical-wall’ limitation of standard semi-Lagrangian procedure. Coupling with BEM, the improved procedure is applied to simulating fully-nonlinear sloshing waves in non-wall-sided tanks. Featured phenomena of 2D and 3D sloshing waves in wedged tanks are observed.
Abstract The semi-Lagrangian procedure is widely used for updating the fully-nonlinear free surface in the time domain. However, this procedure is only available to cases when the body surface is vertical near the waterline. Present study introduces an improved semi-Lagrangian procedure which removes this ‘vertical-wall’ limitation. Coupling with the boundary element method, the improved semi-Lagrangian procedure is applied to the simulation of fully-nonlinear sloshing waves in non-wall-sided tanks. From the result comparison with the open source CFD software OpenFOAM, it is confirmed that this numerical scheme could guarantee a sufficient accuracy. Further series studies on 2D and 3D fully-nonlinear sloshing waves in wedged tanks are performed. Featured phenomena are observed which are distinct from those in wall-sided tanks.
Application of an improved semi-Lagrangian procedure to fully-nonlinear simulation of sloshing in non-wall-sided tanks
Highlights An improved semi-Lagrangian procedure is introduced for updating fully-nonlinear free surface. The improved procedure removes ‘vertical-wall’ limitation of standard semi-Lagrangian procedure. Coupling with BEM, the improved procedure is applied to simulating fully-nonlinear sloshing waves in non-wall-sided tanks. Featured phenomena of 2D and 3D sloshing waves in wedged tanks are observed.
Abstract The semi-Lagrangian procedure is widely used for updating the fully-nonlinear free surface in the time domain. However, this procedure is only available to cases when the body surface is vertical near the waterline. Present study introduces an improved semi-Lagrangian procedure which removes this ‘vertical-wall’ limitation. Coupling with the boundary element method, the improved semi-Lagrangian procedure is applied to the simulation of fully-nonlinear sloshing waves in non-wall-sided tanks. From the result comparison with the open source CFD software OpenFOAM, it is confirmed that this numerical scheme could guarantee a sufficient accuracy. Further series studies on 2D and 3D fully-nonlinear sloshing waves in wedged tanks are performed. Featured phenomena are observed which are distinct from those in wall-sided tanks.
Application of an improved semi-Lagrangian procedure to fully-nonlinear simulation of sloshing in non-wall-sided tanks
Zhang, Chongwei (author)
Applied Ocean Research ; 51 ; 74-92
2015-03-10
19 pages
Article (Journal)
Electronic Resource
English
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