A nonlinear numerical model for sloshing motion in tuned liquid dampers

Siddique, Mizanur R.; Hamed, M.; Damatty, Ashraf A. El

doi:10.1108/09615530510583900

Cited by 12 publications

(2 citation statements)

References 32 publications

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“…Siddique et al 47 applied the analytical mapping technique for modeling the moving boundary. An analytical mapping function was used to transfer the irregular physical domain (deformed interface) into a rectangular computational domain.…”

Section: Introductionmentioning

confidence: 99%

Numerical modeling of sloshing motion in a tuned liquid damper outfitted with a submerged slat screen

Maravani

Hamed

2011

Numerical Methods in Fluids

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SUMMARYTuned liquid dampers (TLDs) are among the most economical and effective passive damping devices. They have been increasingly used to reduce dynamic response and protect structures from failure due to external dynamic excitations. Slat screens are one of the most effective devices used to increase the inherent damping of a TLD, and to reduce the non-linearity of the free surface motion. A numerical algorithm has been developed to solve the complete non-linear, moving boundary flow problem in a TLD outfitted with slat screens. The model has been developed to handle conditions leading from small to large interfacial deformations without imposing any linearization assumptions. The numerical algorithm is based on the finite-difference method. The free surface has been determined using the volume-of-fluid method and the donor-acceptor algorithm. The effect of the slat screens has been modeled explicitly by using the partial-cell treatment method. The present algorithm has been validated against experimental data. The results indicated that the present algorithm is capable of providing accurate details of the flow field inside the TLD and through the screens. These details are essential to improve our understanding of the important parameters governing the performance of a TLD, and hence, to enhance our ability to design better TLDs.

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Section: Introductionmentioning

confidence: 99%

Numerical modeling of sloshing motion in a tuned liquid damper outfitted with a submerged slat screen

Maravani

Hamed

2011

Numerical Methods in Fluids

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“…This FSI approach with linearization of liquid conditions fails in cases of large-amplitude sloshing with steep surface slopes and breaking waves. Conversely, when the free surface nonlinearities are taken into account without the FSI effects such in Siddique et al (2005), the hydrodynamic pressures caused by the deformations of the tank are omitted. However, these hydrodynamic pressures are essential in FSI-coupled systems.…”

Section: Introductionmentioning

confidence: 99%

Numerical modeling of liquid sloshing in flexible tank with FSI approach

Khouf

Benaouicha

Seghir

et al. 2021

WJE

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Purpose The paper aims to present a numerical modeling procedure for the analysis of liquid sloshing in a flexible tank subjected to an external excitation, with taking into account the effects of fluid–structure interaction (FSI). Design/methodology/approach A numerical model based on coupling a two-phase flow solver and an elastic solid solver is developed in OpenFOAM code. The Arbitrary Lagrangian–Eulerian formulation is adopted for the two-phase Navier–Stokes equations in a moving domain. The volume of fluid (VOF) method is applied for the air–liquid interface tracking. The finite volume method is used for the spatial discretization of both the fluid and the structure dynamics equations. The FSI coupling problem is solved by an explicit coupling scheme. The model is validated for linear and nonlinear sloshing cases. Then, it is used to analyze the effects of the liquid sloshing on the dynamic response of the tank and the effects of the tank flexibility on the liquid sloshing. Findings The obtained results show that the flexibility of the tank walls amplifies the amplitude of the sloshing and increases the fluctuation period of the air–liquid interface. Furthermore, it is found that the bending moment acting on the tank walls may be underestimated when rigid walls assumption is adopted as usually done in sloshing tank modeling. Also, tank walls flexibility causes a phase shift in the free surface dynamic response. Originality/value A review of previous studies on liquid sloshing in flexible tanks revealed that FSI effects have not been clearly and comprehensively analyzed for large-amplitude liquid sloshing. Many physical and numerical aspects of this problem still require clarifications and enhancements. The added value of the present work and its originality lie in the investigation of large-amplitude liquid sloshing in flexible tanks by using a staggered coupling approach. This approach is carried out by an original combination of a linear solid solver with a two phase fluid solver in OpenFOAM code. In addition, FSI effects on some response quantities, identified and analyzed herein, have not been found in the previous works.

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Multiple tuned liquid sloshing dampers for across-wind response control of benchmark tall building

Suthar

Jangid

2021

Innov. Infrastruct. Solut.

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A nonlinear numerical model for sloshing motion in tuned liquid dampers

Cited by 12 publications

References 32 publications

Numerical modeling of sloshing motion in a tuned liquid damper outfitted with a submerged slat screen

Numerical modeling of sloshing motion in a tuned liquid damper outfitted with a submerged slat screen

Numerical modeling of liquid sloshing in flexible tank with FSI approach

Multiple tuned liquid sloshing dampers for across-wind response control of benchmark tall building

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