Numerical simulation and influencing factors of HDPE wedges entering water
A three-dimensional numerical wedge model was established to solve the vertical slamming response of high-density polyethylene(HDPE)wedge into water.ALE(Arbitrary Lagrange-Euler)fluid-structure coupling numerical calculation method was used to simulate the wedges.The influence of different water entry velocities,deadrise angle,and plate thickness on the impact response characteristics of the wedge are analyzed.The results show that with the increase of water entry velocity,the peak acceleration of the wedge increases,and the displacement in the water entry direction in-creases simultaneously.The deformation of the two wings of the wedge is inversely proportional to the wedge's thickness,and the wedge's deformation can be effectively reduced by increasing the thickness of the wedge.With the increase of the deadrise angle rise,the slamming pressure and the acceleration peak of the wedge decrease obviously,but the influence on the deformation of the two wings is not apparent.The research results can provide some reference for the engineering design and application of HDPE ships.
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