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Abstract <p>The process of hyperelastic spheres entering water under the influence of various surface geometric features is investigated, with a focus on hyperelastic spheres that have concave and convex grooves on their surfaces. The arbitrary Lagrangian–Eulerian (ALE) method is used to handle the fluid-structure interaction, considering the continuity and momentum equations of the fluid. Numerical calculations using the finite element method are employed. This incorporates a penalty function coupling algorithm and second-order accurate ALE advection techniques to address the fluid-structure coupling. The deformation, the stress distribution, and the characteristics of motion of the spheres after their entry into the water are analyzed.</p>

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Numerical Simulation of Hyperelastic Sphere Water Entry Influenced by Surface Features

  • 期刊论文

  • 发表日期：

    2025年4月1日

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  • X. Zhou,
  • S. Geng,
  • L. T. Zhang

摘要

Abstract

The process of hyperelastic spheres entering water under the influence of various surface geometric features is investigated, with a focus on hyperelastic spheres that have concave and convex grooves on their surfaces. The arbitrary Lagrangian–Eulerian (ALE) method is used to handle the fluid-structure interaction, considering the continuity and momentum equations of the fluid. Numerical calculations using the finite element method are employed. This incorporates a penalty function coupling algorithm and second-order accurate ALE advection techniques to address the fluid-structure coupling. The deformation, the stress distribution, and the characteristics of motion of the spheres after their entry into the water are analyzed.