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<p>Numerical simulations were conducted to examine the effects of various anti-sloshing structures on the hydrodynamic behavior of liquid sloshing in tanks. The analysis systematically evaluated free-surface evolution, centroid motion, and force responses over a range of filling ratios. The results indicate that the filling ratio is a dominant factor governing sloshing intensity, with increased liquid mass leading to higher peak forces and slower decay rates. Moreover, internal structures substantially alter liquid migration patterns, thereby modifying the dominant frequency, peak force magnitude, and damping characteristics. Among the configurations considered, the sidewall partition (Configuration 2) exhibited superior mitigation performance at low and high filling ratios, yielding the lowest force and frequency in conjunction with the highest damping ratio. Conversely, the double-side perforated structure (Configuration 4) promoted enhanced momentum exchange, resulting in the highest force and frequency, albeit accompanied by rapid initial attenuation. The single-side perforated configuration (Configuration 3) displayed pronounced nonlinear behavior, characterized by rapid early decay followed by a marked reduction in attenuation rate. Collectively, these findings offer valuable guidance for the design and optimization of effective slosh-mitigation systems.</p>

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Numerical Research on the Sloshing Suppression Performance of Baffles in Partially Filled Liquid Storage Tanks

  • 期刊论文

  • 发表日期：

    2026年3月27日

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  • Lie Wei,
  • Xiao Zhao,
  • Hai Lin,
  • Kai Li,
  • Yu Liu

摘要

Numerical simulations were conducted to examine the effects of various anti-sloshing structures on the hydrodynamic behavior of liquid sloshing in tanks. The analysis systematically evaluated free-surface evolution, centroid motion, and force responses over a range of filling ratios. The results indicate that the filling ratio is a dominant factor governing sloshing intensity, with increased liquid mass leading to higher peak forces and slower decay rates. Moreover, internal structures substantially alter liquid migration patterns, thereby modifying the dominant frequency, peak force magnitude, and damping characteristics. Among the configurations considered, the sidewall partition (Configuration 2) exhibited superior mitigation performance at low and high filling ratios, yielding the lowest force and frequency in conjunction with the highest damping ratio. Conversely, the double-side perforated structure (Configuration 4) promoted enhanced momentum exchange, resulting in the highest force and frequency, albeit accompanied by rapid initial attenuation. The single-side perforated configuration (Configuration 3) displayed pronounced nonlinear behavior, characterized by rapid early decay followed by a marked reduction in attenuation rate. Collectively, these findings offer valuable guidance for the design and optimization of effective slosh-mitigation systems.