Scholarlink

<p>Previous studies on explosion bubbles mainly focused on single-fluid media, such as air, water, and silicone oil and rarely considered the effect of viscosity on bubble pulsation. This research was conducted to establish a robust numerical model to describe underwater explosions near the free surface based on the coupled Eulerian–Lagrangian method of ABAQUS, in which the bubble dynamics were studied using two media bubbles: traditional water and silicone oil with various viscosities. An electric spark bubble model test was performed to verify the accuracy of the numerical model. Finally, several key parameters were selected as independent variables: the explosion point to the distance from the interface, the different explosion points to the distance from the interface and free surface distance and viscosity under the bubble pulsation process during water mound formation (the raised part of the water surface caused by explosion) mechanics. Afterward, some kinetic parameters, including bubble radius, pulsation period, water mound apex displacement, and velocity, were discussed in detail, which may provide an effective way for the enrichment of the application of numerical simulation technology in bubble dynamics.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Numerical Research on Near-free Surface Underwater Explosion Bubble Characteristics in Different Fluid Media Considering Viscosity Effects

  • 期刊论文

  • 发表日期：

    2025年8月26日

查看全文
  • Xin Chen,
  • Jie Cui,
  • Tao Xia,
  • Wenli Wang,
  • Honglei Lyu

摘要

Previous studies on explosion bubbles mainly focused on single-fluid media, such as air, water, and silicone oil and rarely considered the effect of viscosity on bubble pulsation. This research was conducted to establish a robust numerical model to describe underwater explosions near the free surface based on the coupled Eulerian–Lagrangian method of ABAQUS, in which the bubble dynamics were studied using two media bubbles: traditional water and silicone oil with various viscosities. An electric spark bubble model test was performed to verify the accuracy of the numerical model. Finally, several key parameters were selected as independent variables: the explosion point to the distance from the interface, the different explosion points to the distance from the interface and free surface distance and viscosity under the bubble pulsation process during water mound formation (the raised part of the water surface caused by explosion) mechanics. Afterward, some kinetic parameters, including bubble radius, pulsation period, water mound apex displacement, and velocity, were discussed in detail, which may provide an effective way for the enrichment of the application of numerical simulation technology in bubble dynamics.