Quantifying Uncertainty from Computational Factors in Simulations of a Model Ballistic System

Abstract

Uncertainty in simulations of a model ballistic system is studied, with a focus on factors that are primarily related to the numerical structuring of a problem, such as cell size, domain extent, and system orientation. Depth of penetration of a threat into a target is tracked as the primary quantity of interest. Overall, computational time serves as a secondary performance metric. Two different simulation codes developed at Sandia National Laboratories, CTH and ALEGRA, are employed in this investigation. This study provides a foundation for future explorations of uncertainty in ballistic simulations, as well as a template for investigation of uncertainty in simulations of other systems of interest.

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Document Details

Document Type
Technical Report
Publication Date
Aug 01, 2017
Accession Number
AD1038031

Entities

People

  • Daniel J. Hornbaker

Organizations

  • United States Army Research Laboratory

Tags

Communities of Interest

  • Air Platforms
  • Energy and Power Technologies
  • Weapons Technologies

DTIC Thesaurus Topics

  • Algorithms
  • Bulk Modulus
  • Cell Size
  • Computational Science
  • Convection
  • Department Of Defense
  • Differential Equations
  • Equations
  • Heat Capacity
  • Materials
  • Mathematical Models
  • Military Research
  • Orientation (Direction)
  • Simulations
  • Specific Heat
  • Three Dimensional
  • Uncertainty

Readers

  • Computational Fluid Dynamics (CFD)
  • Missile Defense Systems.
  • Team-Based Human-Centered Cognitive Task Decision Making and Information Performance.