Article
Acoustics
L. Constantin, J. J. De Courcy, B. Titurus, T. C. S. Rendall, J. E. Cooper
Summary: The investigation focused on measuring sloshing motion and damping during harmonic forced vertical motion of a rectangular tank containing fluid. It provided qualitative and quantitative explanations, established an analysis model, and used image processing tools to show potential routes to increase damping, correlating well with measured fluid forces and flow regimes.
JOURNAL OF SOUND AND VIBRATION
(2021)
Article
Engineering, Marine
Wen-Huai Tsao, Li-Hsiang Huang, Wei-Shien Hwang
Summary: The paper investigates the sloshing frequencies and linear and nonlinear damping of sloshing liquid in a rectangular tank occupied by porous media through impulsive and harmonic experiments. An equivalent mechanical model based on Darcy's law is developed for comparison. Nonlinear damping effects are justified by establishing the relationships between equivalent damping ratio, wave amplitude, and ground displacement amplitude.
Article
Acoustics
L. Constantin, J. De Courcy, B. Titurus, T. C. S. Rendall, J. E. Cooper
Summary: This work presents an experimental investigation of damping induced by vertically sloshing liquids at large amplitudes. The results show that the damping deviates from linearity with increasing excitation amplitude, and the analysis of hysteresis cycles offers insight into the force variation.
JOURNAL OF SOUND AND VIBRATION
(2023)
Article
Construction & Building Technology
Congzhen Xiao, Zhenhong Wu, Kai Chen, Yi Tang, Yalin Yan
Summary: A passive liquid control system called TLD with a stable replenishment sub-tank system (TLD-SRS) is proposed to solve the problem of water overfilling in fire-suppression liquid tanks. The system, consisting of an additional sub-tank and a floating ball, automatically replenishes liquid in the TLD, avoiding vibration interference and maintaining normal operation under wind loads. Verified on a large-scale TLD shaking table experiment, the TLD-SRS significantly reduces liquid overshoot and acceleration on the building roof compared to regular liquid replenishment devices.
Article
Engineering, Mechanical
J. Martinez-Carrascal, L. M. Gonzalez-Gutierrez
Summary: The study aims to investigate the damping effect of aircraft fuel sloshing on wing vibrations, presenting an experimental methodology to quantify sloshing force on a vertical SDOF tank. Results show that the sloshing force is composed of an inertial term and a dissipative term, with the presence of fluid notably increasing system damping.
JOURNAL OF FLUIDS AND STRUCTURES
(2021)
Article
Engineering, Marine
Lizhu Wang, Min Xu, Qian Zhang
Summary: This study investigates the damping effect and mechanism of vertical baffles in shallow liquid sloshing under a rotational excitation using an improved particle method. The results show that the damping effect of vertical baffles is affected by the height and position of the baffle, and the resonance characteristics of sloshing are altered when static water is divided into two parts by the vertical baffle.
JOURNAL OF MARINE SCIENCE AND ENGINEERING
(2021)
Article
Engineering, Aerospace
Jintao Liu, Yong Li, Wen Li, Zhen Qu, Kun Cai, Lei Chen, Nanji Yang
Summary: This study experimentally investigates the liquid sloshing performance of a vane-type tank used in high orbit satellites. The experimental results are in good agreement with the theoretical results, indicating the reliability of the test system. It is found that there is a linear relationship between the sloshing frequency and the liquid-filling ratio, and the PMD structure can increase the damping in the vertical installation tank.
MICROGRAVITY SCIENCE AND TECHNOLOGY
(2022)
Article
Engineering, Marine
Mi-An Xue, Zhouyu Jiang, Pengzhi Lin, Jinhai Zheng, Xiaoli Yuan, Ling Qian
Summary: The research shows that the damping effect of the porous material layer inside the cylindrical tank is more significant compared to the ring baffle. The porous material layer acts not only as a pressure absorber, but also as an energy dissipator.
Article
Engineering, Civil
Heng Jin, Andrea Calabrese, Yong Liu
Summary: This study numerically modeled the hydrodynamic characteristics of liquid sloshing in a 2D rectangular tank and the pressure response in a typical industrial container due to external excitation. The effects of filling depth, ground motion components, and damping baffle on pressure response history under impulsive and convective modes were examined. A damping baffle system suitable for all seismic excitations was developed based on dynamic response analysis, contributing to improving tank design in earthquake-prone areas.
ENGINEERING STRUCTURES
(2021)
Article
Engineering, Mechanical
Jon Martinez-Carrascal, Marco Pizzoli, Francesco Saltari, Franco Mastroddi, Leo Miguel Gonzalez-Gutierrez
Summary: The aim of this paper is to provide a Reduced Order Model (ROM) for accurate prediction of liquid induced dissipation in violent and vertical sloshing problems across a wide range of liquid properties. The Delta Smoothed Particle Hydrodynamics (delta-SPH) formulation is used to establish a simulation database, from which an equivalent mechanical model is identified and a hypersurface-based ROM is defined. The ROM effectively estimates bouncing ball design parameters and consistently matches SPH test simulations, indicating its practical and resource-efficient use for predicting critical aspects of vertical sloshing.
NONLINEAR DYNAMICS
(2023)
Article
Engineering, Marine
Yueyang Han, Xiang Zhu, Tianyun Li, Wenjie Guo, Luyan Pan
Summary: In this paper, a semi-analytical method is introduced to solve the linear liquid sloshing frequencies and mode shapes of a three-dimensional partially filled horizontal cylindrical container, and the accuracy of the method is verified through experiments. The effects of liquid depths and tank length on sloshing motion are investigated.
Article
Engineering, Marine
Peng Huang
Summary: This paper comprehensively investigates the effects of vertical baffle on liquid sloshing behaviors in rectangular water tanks using CFD method and finite volume model. The influences of factors such as excitation amplitude, water depth, number of baffles, baffle position, and baffle height are extensively explored. The accuracy of the modeling is confirmed through rigorous comparisons with existing experimental results.
Article
Engineering, Aerospace
Alvaro Romero-Calvo, Miguel Angel Herrada, Tim H. J. Hermans, Lidia Parrilla Benitez, Gabriel Cano-Gomez, Elena Castro-Hernandez
Summary: Dealing with the sloshing of liquids in low gravity poses technical challenges for spacecraft designers, which can be addressed by using magnetic settling forces. A comparison between coupled fluid-magnetic simulations and an uncoupled framework suggests that the coupled model shows better agreement with experimental results in determining the magnetic deformation trend of the meniscus, while the uncoupled framework provides a better prediction of the magnetic frequency response.
MICROGRAVITY SCIENCE AND TECHNOLOGY
(2021)
Article
Multidisciplinary Sciences
Qiang Fang, Jian Sun, Hongxing Qiu, Yongcheng Qi, Qing Chun
Summary: This study conducted experimental tests on tank models with ring baffles. The results showed that within specific ranges of relative width and relative vertical position, the baffles effectively reduced liquid sloshing and controlled the acceleration of tank wall. The horizontal ring baffle is considered as a simple and convenient measure with great application prospect.
ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING
(2023)
Article
Engineering, Mechanical
L. Constantin, J. De Courcy, B. Titurus, T. C. S. Rendall, J. E. Cooper
Summary: The sloshing motion of liquid in a tank affects the vertical transient motion of a single degree of freedom system, with added damping depending on the fluid amount and maximum acceleration. The system shows three distinct response regimes during transient decay, with the most significant one being at the start of the transient for mitigating aircraft gust loads.
MECHANICAL SYSTEMS AND SIGNAL PROCESSING
(2021)
