HELP - A Multimaterial Eulerian Program in Two Space Dimensions and Time

Abstract

HELP is a two-dimensional, multimaterial, Eulerian Code for solving material flow problems in the hydrodynamic and elastic-plastic regimes. Although the code is basically Eulerian, material interfaces and free surfaces are propagated through the Calculation Mesh, in a Lagrangian manner, as discrete interfaces across which the materials are not allowed to interdiffuse. This interface treatment gives HELP a distinct advantage over other pure Eulerian Codes and allows it to be applied to the solution of a variety of complex, multimaterial problems. The basic HEPL techniques have been exercised over a wide range of solutions including hypervelocity and ballistic impact, fragmentation munitions, shaped charge jet formation, and shaped charge jet penetration. Considerable confidence has been gained in the basic numerical model.

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Document Details

Document Type
Technical Report
Publication Date
Apr 01, 1976
Accession Number
ADB015343

Entities

People

  • Darin E. Wilkins
  • Jerry L. Waddell
  • Laura J. Hageman
  • Robert T. Sedgwick

Organizations

  • Utility Systems Science and Software (United States)

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Air Force
  • Air Force Facilities
  • Computational Fluid Dynamics
  • Computers
  • Continuum Mechanics
  • Core Storage
  • Explosives
  • Grids
  • Hydrostatic Pressure
  • Mechanics
  • Munitions
  • Shape
  • Shaped Charge Jets
  • Shaped Charges
  • Stratified Fluids
  • Tensile Strength
  • Test And Evaluation

Readers

  • Explosive Engineering.
  • Structural Health Monitoring of Composite Structures.
  • Systems Analysis and Design

Technology Areas

  • Hypersonics
  • Hypersonics - Hypersonic Flight
  • Space