An efficient passive technique for reducing sloshing in rectangular tanks partially filled with liquid

Belakroum, R.; Kadja, Mahfoud; Mai, Tri; Maalouf, Chadi

doi:10.1016/j.mechrescom.2010.02.003

Cited by 57 publications

(17 citation statements)

References 16 publications

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“…The relevant eigenvalue analysis was carried out with the FE software Comsol Multiphysics (version 5.2). The smart foundation under study is conceived for the higher frequency, since sloshing frequencies can be easily suppressed or mitigated with baffles (Belakroum et al, 2010). Therefore, the design of the unit cell focused on the first impulsive frequency of the fully filled tank, i.e., 4.05 Hz.…”

Section: Modal Analysis Of a Broad Tankmentioning

confidence: 99%

Conception of a 3D Metamaterial-Based Foundation for Static and Seismic Protection of Fuel Storage Tanks

et al. 2017

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Fluid-filled tanks in tank farms of industrial plants can experience severe damage and trigger cascading effects in neighboring tanks due to large vibrations induced by strong earthquakes. In order to reduce these tank vibrations, we have explored an innovative type of foundation based on metamaterial concepts. Metamaterials are generally regarded as manmade structures that exhibit unusual responses not readily observed in natural materials. If properly designed, they are able to stop or attenuate wave propagation. Recent studies have shown that if locally resonant structures are periodically placed in a matrix material, the resulting metamaterial forms a phononic lattice that creates a stop band able to forbid elastic wave propagation within a selected band gap frequency range. Conventional phononic lattice structures need huge unit cells for low-frequency vibration shielding, while locally resonant metamaterials can rely on lattice constants much smaller than the longitudinal wavelengths of propagating waves. Along this line, we have investigated 3D structured foundations with effective attenuation zones conceived as vibration isolation systems for storage tanks. In particular, the three-component periodic foundation cell has been developed using two common construction materials, namely concrete and rubber. Relevant frequency band gaps, computed using the Floquet-Bloch theorem, have been found to be wide and in the low-frequency region. Based on the designed unit cell, a finite foundation has been conceived, checked under static loads and numerically tested on its wave attenuation properties. Then, by means of a parametric study we found a favorable correlation between the shear stiffness of foundation walls and wave attenuation. On this basis, to show the potential improvements of this foundation, we investigated an optimized design by means of analytical models and numerical analyses. In addition, we investigated the influence of cracks in the matrix material on the elastic wave propagation, and by comparing the dispersion curves of the cracked and uncracked materials we found that small cracks have a negligible influence on dispersive properties. Finally, harmonic analysis results displayed that the conceived smart foundations can effectively isolate storage tanks.

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Section: Modal Analysis Of a Broad Tankmentioning

confidence: 99%

Conception of a 3D Metamaterial-Based Foundation for Static and Seismic Protection of Fuel Storage Tanks

et al. 2017

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“…Traditional approaches to study this phenomenon usually assume the fluid to be non-viscous and non-turbulent, thus leading to unrealistic predictions, for example, the potential flow theorem to solve the Laplacian equations. Here we use the ISPH model to reproduce a liquid sloshing process inside a baffled tank based on the work of Belakroum et al (2010). In this work they applied an Arbitrary Lagrangian-Eulerian (ALE) method to solve the Navier-Stokes equations for different baffle configurations using the FEM approach.…”

Section: Movement Verification -Sloshing In a Baffled Tankmentioning

confidence: 99%

“…Time histories of the water surface variation on left side of the tank are shown in Fig. 2, for the numerical results between ISPH and ALE simulations of Belakroum et al (2010). In the figure, denotes the surface displacement from still water level.…”

Section: Movement Verification -Sloshing In a Baffled Tankmentioning

confidence: 99%

2D Numerical ISPH Wave Tank for Complex Fluid–Structure Coupling Problems

Liu

Shao

Lin³

et al. 2016

IJOPE

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In this paper, we provide a hybrid incompressible Smoothed Particle Hydrodynamics (ISPH) model for fluid-structure interactions. The numerical algorithms include the mirroring treatment of solid boundary, free surface tracking, wave damping using sponge layer and fluidsolid coupling model. The proposed ISPH wave tank is applied to a series of wave-structure coupling problems including the sloshing in a baffled tank, solitary wave impact on an underwater obstacle, water entry of a cylinder and balance dynamics of a floating object. The simulation results demonstrate that the ISPH model provides an accurate simulation technique in various fluid-structure coupling studies.

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“…Many researchers have studied this phenomenon in the past few decades to estimate liquid free surface or pressure in different storage tank geometric shapes. Choun and Yun [1], Chen and Chiang [2], Celebi and Akyildiz [3], Frandsen [4], Akyildiz and Unal [5,6], Chen and Nokes [7], Wu [8], Lee et al [9,10], Liu and Lin [11], Panigrahy et al [12], Belakroum et al [13], Ming and Duan [14], Huang et al [15], Jung et al [16] and Pirker et al [17] studied the sloshing phenomenon in rectangular tanks. Wu [8] studied probability of exciting second-order resonance in a rectangular tank in horizontal motion and its relation to natural frequencies of the tank.…”

Section: Introductionmentioning

confidence: 99%

Parametric study for optimization of storage tanks considering sloshing phenomenon using coupled BEM–FEM

Ketabdari

Saghi

2013

Applied Mathematics and Computation

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An efficient passive technique for reducing sloshing in rectangular tanks partially filled with liquid

Cited by 57 publications

References 16 publications

Conception of a 3D Metamaterial-Based Foundation for Static and Seismic Protection of Fuel Storage Tanks

Conception of a 3D Metamaterial-Based Foundation for Static and Seismic Protection of Fuel Storage Tanks

2D Numerical ISPH Wave Tank for Complex Fluid–Structure Coupling Problems

Parametric study for optimization of storage tanks considering sloshing phenomenon using coupled BEM–FEM

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