Linear Stability of Self-Similar Flow. 3. Compressional Waves in Imploding Spherical Shells.

Abstract

A new, potentially disruptive, phenomenon in target pellets irradiated by laser or particle beams is described. Initially weak standing sound waves (vibrations) in an imploding spherical shell can become comparable in amplitude with the shell thickness if the effective adiabatic index satisfies gamma < 5/3. Detailed calculations with a soluble self-consistent model show the relative amplification is strongest for long-wavelength modes in thin shells with small gamma, and is insensitive to the density profile. (Author)

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Document Details

Document Type
Technical Report
Publication Date
May 01, 1978
Accession Number
ADA060806

Entities

People

  • David L. Book

Organizations

  • United States Naval Research Laboratory

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Acoustic Propagation
  • Amplification
  • Amplitude
  • Aspect Ratio
  • Conduction (Heat Transfer)
  • Differential Equations
  • Energy
  • Equations
  • Hypergeometric Functions
  • Long Wavelengths
  • Military Research
  • Particle Beams
  • Perturbations
  • Rayleigh Taylor Instability
  • Sound Waves
  • Time Dependence
  • Waves

Fields of Study

  • Physics

Readers

  • Atmospheric Science / Meteorology, specifically Wind Wave Turbulence.
  • Pulsed Power and Plasma Physics.
  • Structural Dynamics.

Technology Areas

  • Directed Energy