Accession Number:

ADA106141

Title:

Reconstruction of a Blast Field from Pressure History Observations

Descriptive Note:

Technical rept.

Corporate Author:

ARMY BALLISTIC RESEARCH LAB ABERDEEN PROVING GROUND MD

Personal Author(s):

• Celmins, Aivars

Report Date:

1981-09-01

Pagination or Media Count:

92.0

Abstract:

This report describes a method for the calculation of parts of a spherical blast field from pressure history observations at stations placed at various distances from the blast center. The method consists of a determination of the pressure field by model fitting and of a subsequent numerical integration of the flow governing equations. The results provide a complete flow description pressure, density, and particle velocity as well as estimates of the accuracy of the results within the region of observations. A check of some basic assumptions spherical symmetry and negligible viscosity is provided by an independent calculation of the particle velocity. Application examples are shown for a theoretically computed strong blast field and for data from a high energy blast experiment.

Descriptors:

• *BLAST
• *PRESSURE DISTRIBUTION
• ACCURACY
• DENSITY
• ESTIMATES
• EXPERIMENTAL DATA
• FLOW FIELDS
• HIGH ENERGY
• IDEAL GAS LAW
• MATHEMATICAL MODELS
• NUCLEAR EXPLOSION SIMULATION
• NUMERICAL INTEGRATION
• OVERPRESSURE
• PARTICLES
• PRESSURE MEASUREMENT
• RANGE(DISTANCE)
• SPHERES
• VARIABLES

Subject Categories:

• Explosions
• Fluid Mechanics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE