Reconstruction of a Blast Field from Pressure History Observations

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.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Sep 01, 1981
Accession Number
ADA106141

Entities

People

  • Aivars Celmins

Organizations

  • Ballistic Research Laboratory

Tags

Communities of Interest

  • Space
  • Weapons Technologies

DTIC Thesaurus Topics

  • Accuracy
  • Algorithms
  • Computational Science
  • Computations
  • Computer Programs
  • Confidence Limits
  • Data Sets
  • Dynamic Pressure
  • Equations
  • Flow Fields
  • Measurement
  • Numerical Integration
  • Observation
  • Overpressure
  • Particles
  • Pressure Measurement
  • Security

Fields of Study

  • Physics

Readers

  • Approximation Theory.
  • Computational Fluid Dynamics (CFD)
  • Electromagnetic Wave Scattering and Antenna Radiation Engineering