BLAST-WAVE MASS-MOTION MEASUREMENTS

Abstract

Operation Ivy was instrumented for the mass-motion method of pressure measurement in a manner similar to that used on Operations BusterJangle and Tumbler-Snapper. Low-altitude pyrotechnic mortar bursts and high-altitude gun bursts (on Mike only) labeled the air for photographic recording. The methods of instrumentation are described; the method of data analysis is outlined; and derived data on time of arrival, peak material velocity, peak shock velocity, and peak overpressure are presented in tabular and graphic form. Appendixes present meteorological and ballistic data and calculations. An outstanding conclusion of the experiment is the lowness of peak overpressures near the surface compared with the peak overpressures at altitudes up to 25,000 ft because of the effect of atmospheric inhomogeneity at long ranges. The mass- motion technique offers a useful diagnostic tool for the determination of total hydrodynamic yield.

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Document Details

Document Type
Technical Report
Publication Date
Jun 01, 1953
Accession Number
AD0363621

Entities

People

  • Daniel F. Seacord Jr.

Organizations

  • Los Alamos National Laboratory

Tags

Communities of Interest

  • Weapons Technologies

DTIC Thesaurus Topics

  • Air Masses
  • Aircrafts
  • Altitude
  • Ballistics
  • Blast Waves
  • Cameras
  • High Altitude
  • Instrumentation
  • Low Altitude
  • Materials
  • Measurement
  • Measuring Instruments
  • Meteorological Data
  • Meteorological Phenomena
  • Particles
  • Security
  • Weapons

Fields of Study

  • Physics

Readers

  • Ballistic Missile Meteorology
  • Explosive Engineering.
  • Systems Analysis and Design