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- W2008477387 abstract "A ship would generate significant sloshing when subjected to underwater explosion loads; the sloshing will reduce the ship's stability and even cause the ship to capsize when coupled with internal liquid sloshing. It is of great significance to research on the characteristics of the sloshing loads in a tank to improve the ship's stability and security. The liquid sloshing in a tank is a complex process characterized with nonlinearity and strong randomness, and large amplitude sloshing is a great challenge for both theoretical models and numerical algorithms. Yet as a meshfree method, Smoothed particle hydrodynamics (SPH) has great advantages of solving such large deformation problems because of the nature of self-adaptiveness and Lagrangian. This paper focuses on the SPH core issues, such as the accuracy and the stability of the kernel function and boundary treatments. Firstly, the accuracy and computational stability of four common SPH kernel functions are simply investigated by two simple cases, and a more appropriate kernel function is selected. Secondly, the dummy particles and a novel boundary treatment considering the boundary motion are applied. Furthermore, the laws of impact pressure of the two-dimensional tank under forced rolling with different excitation frequencies and excitation angles are studied. Then, the influences of a baffle for the liquid sloshing in a two-dimensional tank under forced surging are analyzed, and the action mechanisms of the baffle are summarized. Finally, the coupled motion of swaying and surging for a three-dimensional tank is studied, which aims to lay a foundation for further study on the influence of sloshing loads on real ship motions." @default.
- W2008477387 created "2016-06-24" @default.
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- W2008477387 date "2014-08-01" @default.
- W2008477387 modified "2023-09-29" @default.
- W2008477387 title "Sloshing in a rectangular tank based on SPH simulation" @default.
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- W2008477387 doi "https://doi.org/10.1016/j.apor.2014.06.006" @default.
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