Accession Number:

AD1038031

Title:

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

Descriptive Note:

Technical Report

Corporate Author:

US Army Research Laboratory Aberdeen Proving Ground United States

Personal Author(s):

• Hornbaker, Daniel J

Report Date:

2017-08-01

Pagination or Media Count:

66.0

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.

Descriptors:

• uncertainty
• ballistics
• computational science
• simulations

Subject Categories:

• Cybernetics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE