Underwater Explosion Test Cases

Abstract

Simulation of underwater explosions is an essential component of platform survivability and weapon lethality assessments. Success at this task requires predicting target loading, which primarily occurs as a consequence of the initial shock and subsequent bubble collapse. These damage mechanisms occur on time scales that differ widely, typically on the order of microseconds for the shock and milliseconds for collapse. Successful prediction of these events requires numerical techniques that can capture strong shocks and the interface between fluids with density ratios of 1000:1. This report describes a set of 19 test cases that exhibit such phenomena. These problems are divided into three groups: one-dimensional with fixed boundaries, two- and three-dimensional with fixed boundaries, and one-, two, and three-dimensional problems with moving boundaries. The specification of these problems includes grid size for a fixed Cartesian mesh.

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Document Details

Document Type
Technical Report
Publication Date
May 01, 1998
Accession Number
ADB238684

Entities

People

  • Andrew B. Wardlaw Jr.

Organizations

  • Naval Surface Warfare Center Indian Head Division

Tags

Communities of Interest

  • Weapons Technologies

DTIC Thesaurus Topics

  • Boundaries
  • Cartesian Coordinates
  • Cauchy Problem
  • Collapse
  • Equations
  • Explosions
  • Explosives
  • Flow Fields
  • High Pressure
  • Military Research
  • Pressure Distribution
  • Simulations
  • Surface Warfare
  • Test And Evaluation
  • Three Dimensional
  • Two Dimensional
  • Underwater Explosions

Readers

  • Computational Fluid Dynamics (CFD)
  • Theoretical Analysis.
  • Underwater engineering and Marine Technology.