UNDERWATER SHOCKWAVE FOCUSING AT CAUSTICS: COMPARISON OF THEORY AND EXPERIMENT

Abstract

A theory of shockwave focusing is employed in an attempt to predict the extent of focusing of explosive pulses at caustics as observed experimentally. Assuming a viscous medium and a physically reasonable model for the explosive pulse, an order of magnitude comparison with experiment is obtained. The omission of viscosity from the mathematical model leads to unacceptably large amplification at the caustic.

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Document Details

Document Type
Technical Report
Publication Date
Aug 31, 1969
Accession Number
AD0693313

Entities

People

  • David A. Sachs

Tags

Communities of Interest

  • Counter IED

DTIC Thesaurus Topics

  • Acoustic Propagation
  • Acoustic Signals
  • Acoustics
  • Attenuation
  • Coefficients
  • Earth Sciences
  • Equations
  • Explosives
  • Frequency
  • Intervals
  • Mathematical Models
  • Military Research
  • Peak Values
  • Sound Waves
  • Time Intervals
  • United States
  • Waves

Fields of Study

  • Physics

Readers

  • Combustion Dynamics and Shock Wave Physics.
  • Computational Modeling and Simulation
  • Wave Propagation and Nonlinear Chaotic Dynamics.