Abstract
A recently developed numerical method has been employed to evaluate the influence of free surface on shock loading in a cylindrical underwater explosion carried out near to both a free surface and a cylindrical rigid structure. In the usual simulation of underwater shock-structure interaction, the shock loading tends to accelerate/move the (rigid) structure only in the resultant force direction. The presence of a free surface and explosion bubble suggests the existence of a reverse loading and provides an additional torque (rotational moment) on the loaded structure. The numerical results also demonstrate the possible existence of a cavitation zone/region in the immediate vicinity of the free surface due to the near-surface underwater explosion.
| Original language | English |
|---|---|
| Pages (from-to) | 609-630 |
| Number of pages | 22 |
| Journal | International Journal for Numerical Methods in Engineering |
| Volume | 58 |
| Issue number | 4 |
| DOIs | |
| State | Published - 28 Sep 2003 |
| Externally published | Yes |
Keywords
- Free surface
- Gas bubble-water interface
- Submerged structure
- Underwater shock
- Wave interaction
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