Study of Colliding-Shell Configurations to Reduce the Effects of Magnetic Rayleigh-Taylor on Imploding Liners

Abstract

We present computational studies on the use of colliding shell configurations to mitigate the effects of Magnetic Rayleigh-Taylor (MRT) on the inner liner. Two-dimensional MHD calculations of liners have been performed that have pre-formed single wavelength perturbations. Specifying the perturbation allows us to follow the evolution of a specific disturbance with little ambiguity. This technique has been confirmed in numerous experiments on the PEGASUS II machine. An inner liner is located at a smaller radius than the outer, driver liner. The radius is chosen so that the perturbation will grow to large amplitude before impact. To minimize shock effects, a low-density pad is placed between the two liners. This pad may be either plastic or a magnetic field. Results of the computational study will be presented.

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Document Details

Document Type
Technical Report
Publication Date
Jun 01, 1999
Accession Number
ADA639319

Entities

People

  • Irvin R. Lindemuth
  • R. J. Faehl
  • R. K. Keinigs
  • Robert E. Reinovsky
  • Walter L. Atchison

Organizations

  • Los Alamos National Laboratory

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Abstracts
  • Amplitude
  • Collisions
  • Dispersion Relations
  • Dynamics
  • Equations
  • Experimental Data
  • Information Operations
  • Instability
  • Materials
  • Momentum Transfer
  • New Mexico
  • Perturbations
  • Pulsed Power
  • Rayleigh Taylor Instability
  • Short Wavelengths
  • Two Dimensional

Fields of Study

  • Physics

Readers

  • Adaptive Control and Estimation with Uncertainty in Dynamic Systems.
  • Military Engineering.
  • Pulsed Power and Plasma Physics.