Lagrangian modelling of fluid sloshing in moving tanks

Buldakov, Eugeny

doi:10.1016/j.jfluidstructs.2013.12.003

Cited by 17 publications

(6 citation statements)

References 32 publications

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“…The problem is then solved numerically using a finite-difference technique. More details of the numerical method can be found in Buldakov (2013Buldakov ( , 2014).…”

Section: Generation Of the Incoming Wave-current Flow By Coupling Thementioning

confidence: 99%

Numerical modelling of interactions of waves and sheared currents with a surface piercing vertical cylinder

Chen

Stagonas

Santo

et al. 2019

Coastal Engineering

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Highlights • Two different approaches, 2-D OpenFOAM and Lagrangian wave-current simulations, are used to model focussed wave groups and sheared currents simultaneously in a controlled manner, and produce input conditions for 3-D OpenFOAM models to investigate wavecurrent-structure interactions. • Good agreement between numerical results and experimental data is obtained, indicating that both approaches are capable of replicating experimental wave-current flows, and accurately modelling interactions between surface piercing cylinders and focussing waves on sheared currents. • The performance of both approaches is evaluated in terms of accuracy and computational effort required. • It is found that the method of coupling 3-D CFD and Lagrangian models is computational slightly cheaper and slightly more accurate because of the use of a smaller computationally domain and the iterative wave-current generation in the faster Lagrangian model.

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“…The problem is then solved numerically using a finite-difference technique. More details of the numerical method can be found in Buldakov (2013Buldakov ( , 2014).…”

Section: Generation Of the Incoming Wave-current Flow By Coupling Thementioning

confidence: 99%

Numerical modelling of interactions of waves and sheared currents with a surface piercing vertical cylinder

Chen

Stagonas

Santo

et al. 2019

Coastal Engineering

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“…In their model, the large-eddy-simulation (LES) approach is adopted to account for the effect of turbulence by using the Smagorinsky sub-grid scale (SGS) closure model. Buldakov [13] considered a 2D sloshing problem in a rectangular tank under horizontal and vertical excitation using a Lagrangian model. Xue et al [14] modelled the liquid sloshing in a baffled-tank using a time domain NS solver.…”

Section: Introductionmentioning

confidence: 99%

Numerical Simulation of Liquid Sloshing with Different Filling Levels Using OpenFOAM and Experimental Validation

Chen

Xue

2018

Water

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A series of numerical simulations were performed to explore the influences of filling level, excitation frequency and amplitude on liquid sloshing by using the open source Computational Fluid Dynamics toolbox OpenFOAM (Open Field Operation and Manipulation), which was fully validated by the experimental data. The results show that the dynamic impact pressure is proportional to the external excitation amplitude only in non-resonance frequency ranges. Pressure-frequency response curves demonstrate a transition process from a 'soft-spring' response to a 'hard-spring' response following the changes of the filling level. Such a transition process is found to be dominated by the ratio of the filling level to tank length and the critical value can be obtained. It is also found that wave breaking influences the period of sloshing wave in tanks and ultimately alters the resonance frequency from the linear theory.

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“…These problems can be efficiently approached by much simpler Lagrangian models similar to the original model of Brennen and Whitney (1970). Recent examples of application of such a model include tsunami waves in a wave flume (Buldakov, 2013), violent sloshing in a moving tank (Buldakov, 2014) and evolution of breaking wave groups (Buldakov et al, 2019).…”

Section: Fully Lagrangian Modelsmentioning

confidence: 99%

Wave Propagation Models for Numerical Wave Tanks

Buldakov¹

2021

Advanced Numerical Modelling of Wave Structure Interactions

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This chapter discusses the importance of efficient wave propagation models for generating boundary conditions for CFD models of wave-structure interaction or as elements of hybrid models. We give a brief review of fully nonlinear wave models based on potential flow theory (FNPT), which are the main candidates for such applications. We then suggest a Lagrangian wave model as an alternative to classical FNPT models. We present a mathematical and numerical formulation of the model, its validation and application to propagation of steep wave groups and to wave groups on sheared currents.

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Lagrangian modelling of fluid sloshing in moving tanks

Cited by 17 publications

References 32 publications

Numerical modelling of interactions of waves and sheared currents with a surface piercing vertical cylinder

Numerical modelling of interactions of waves and sheared currents with a surface piercing vertical cylinder

Numerical Simulation of Liquid Sloshing with Different Filling Levels Using OpenFOAM and Experimental Validation

Wave Propagation Models for Numerical Wave Tanks

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