Improvement and Validation of the Trident UNDEX Interface

Abstract

This technical note provides a summary of work carried out to improve, verify and validate the Trident UNDEX Interface computer code for DRDC. The improvements included the incorporation of a capability to automatically generate, with minimum input from the user, input files for Vast-USA, and a state-of-the-art survey of potential flow methods for calculating the dynamics of near-field UNDEX gas bubbles. The verification and validation focused on the recently developed tightly coupled Vast-USA interface. In total six different problems were investigated for: (1) comparison with the loosely coupled Vast-USA Interface; (2) comparison with LS-DYNA; (3) comparison with experiment; and (4) consistency with units. Recommendations are made for: (1) further improvements to the Trident UNDEX Interface, including the incorporation of a boundary element technique for modeling near-field UNDEX bubble dynamics; and (2) further verification and validation studies.

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Document Details

Document Type
Technical Report
Publication Date
Aug 01, 2006
Accession Number
AD1003966

Entities

People

  • J. Gregson
  • M. E. Norwood

Tags

Communities of Interest

  • Ground and Sea Platforms

DTIC Thesaurus Topics

  • Boundaries
  • Computational Fluid Dynamics
  • Computational Science
  • Computers
  • Differential Equations
  • Equations
  • Finite Element Analysis
  • Fluid Dynamics
  • Geometric Forms
  • Geometry
  • Integral Equations
  • Internal Pressure
  • Literature Surveys
  • Near Field
  • Potential Flow
  • Three Dimensional
  • Wave Propagation

Readers

  • Explosive Engineering.
  • Geochemistry
  • Software Engineering.