A Numerical Study on the Effects of Perforated and Imperforate Baffles on the Sloshing Pressure of a Rectangular Tank

Al-Yacouby, A. M.; Ahmed, Mostafa

doi:10.3390/jmse10101335

Cited by 5 publications

(1 citation statement)

References 30 publications

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“…Xue et al [15,16] numerically performed the investigation on reducing sloshing in containers with a baffle and a porous material layer. Al-Yacouby and Ahmed [17] conducted a numerical investigation of baffle effects on the sloshing pressure of a rectangular container. Furthermore, experimental methods can be also utilized to obtain the dynamics of storage tanks with baffles [18].…”

Section: Introductionmentioning

confidence: 99%

Liquid Sloshing in Soil-Supported Multiple Cylindrical Tanks Equipped with Baffle under Horizontal Excitation

Sun,

Meng,

Zhang

et al. 2024

Buildings

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The dynamic behavior of liquid storage tanks is one of the research issues about fluid–structure interaction problems. The analysis errors of the dynamics of multiple adjacent tanks can exist if neglecting soil–tank interaction since tanks are typically supported on flexible soil. In the present paper, the dynamics of a group of baffled cylindrical storage tanks supported on a circular surface foundation and undergoing horizontal excitation are analytically examined. For upper multiple tank–liquid–baffle subsystems, accurate solutions to the velocity potential for liquid sloshing are acquired according to the subdomain partition technique. A theoretical model is utilized to portray the continuous sloshing of each tank. For the soil–foundation subsystem, a lumped-parameter model is used to characterize the impacts of soil on upper-tank structures using Chebyshev complex polynomials that present the fitting results of horizontal, rocking, and coupling impedance functions. Then, a model of the soil–foundation–tank–liquid–baffle system is constructed on the basis of the substructure approach. The present sloshing frequencies, sloshing height, and hydrodynamic shear as well as the moment under rigid/soft soil foundations are compared to the available exact results and the numerical results to prove the validity of the present model. The error of the maximum sloshing height between the present and the numerical solutions is within 5.27%; the solution efficiency of system dynamics from the present model is 40–50 times faster than that from the ADINA model. A detailed parameter analysis of the dynamic characteristics and earthquake responses of the coupling system is presented. The research novelty is that an equivalent analytical model is presented, and it allows for investigating the dynamics of soil-supported multiple cylindrical tanks with a baffle, providing acceptable accuracy and high calculation efficiency.

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Section: Introductionmentioning

confidence: 99%

Liquid Sloshing in Soil-Supported Multiple Cylindrical Tanks Equipped with Baffle under Horizontal Excitation

Sun,

Meng,

Zhang

et al. 2024

Buildings

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Experimental investigation of damping effect of porous structures on hydrodynamic response of a floating closed aquaculture tank in beam regular waves

Wang,

Xu,

Wang

et al. 2024

Ocean Engineering

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Numerical simulation of the interaction between nonlinear sloshing flow and side-mounted perforated baffles

Wang,

Xu,

Shen

et al. 2023

Physics of Fluids

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This study investigates the effect of nonlinear strengths of sloshing on damping performance of side-mounted perforated baffles and discusses the influence of perforated baffles on resonance characteristics of sloshing flow. The model performance score is adopted to evaluate the nonlinear strength of water sloshing. A microscopic model and a volume-averaged macroscopic model are established to simulate the sloshing flow in a two-dimensional (2D) water tank with perforated baffles. In addition, a series of experimental tests are conducted to validate the numerical model. By analyzing the effects of nonlinear strength on damping performance of perforated baffles, a critical nonlinear strength of Reynolds number (Re) equal to 56 000 is obtained: For nonlinear strength smaller than critical nonlinear strength, the damping effect due to perforated baffles is mainly achieved by shifting the energy density to the excitation frequency; for nonlinear strength enhanced to the critical value, further increasing nonlinear strength shows slight influence on damping performance, and an additional increase in sloshing response occurred due to violent interaction between baffles and fluid flow. Importantly, the Reynolds number corresponding to the critical nonlinear strength is independent of the properties of perforated baffles, such as porosity and mounted form. Furthermore, the resonance effect of sloshing flow can be significantly weakened with an increasing blockage of perforated baffles, accompanying negative growth of maximum force amplitude on bulkhead.

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A Numerical Study on the Effects of Perforated and Imperforate Baffles on the Sloshing Pressure of a Rectangular Tank

Cited by 5 publications

References 30 publications

Liquid Sloshing in Soil-Supported Multiple Cylindrical Tanks Equipped with Baffle under Horizontal Excitation

Liquid Sloshing in Soil-Supported Multiple Cylindrical Tanks Equipped with Baffle under Horizontal Excitation

Experimental investigation of damping effect of porous structures on hydrodynamic response of a floating closed aquaculture tank in beam regular waves

Numerical simulation of the interaction between nonlinear sloshing flow and side-mounted perforated baffles

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