Steady-State Planar Ablative Flow.

Abstract

Steady state planar ablative flow in a laser produced plasma is studied. Our calculations relate all steady state fluid quantities to only three parameters, the material, absorbed irradiance and laser wavelength. The fluid is broken into three regions; the subcritical expanding plasma, the steady state ablation front and the accelerated slab. Boundary conditions at the interfaces of these regions are given. If the absorbed irradiance is nonuniform, the nonuniformity in ablation pressure is calculated. Results are compared with experiment and fluid simulation for both uniform and nonuniform illumination. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Nov 18, 1981
Accession Number
ADA107601

Entities

People

  • Dennis G. Colombant
  • John H. Gardner
  • Wallace M. Manheimer

Organizations

  • United States Naval Research Laboratory

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Acoustic Propagation
  • Boundaries
  • Conduction (Heat Transfer)
  • Dispersion Relations
  • Flow
  • Fluid Flow
  • Frequency
  • Geometry
  • Long Wavelengths
  • Mach Number
  • Materials
  • Scaling Laws
  • Simulations
  • Sound Waves
  • Steady State
  • Temperature Gradients
  • Two Dimensional

Fields of Study

  • Physics

Readers

  • Fluid Mechanics and Fluid Dynamics.
  • Pulsed Power and Plasma Physics.

Technology Areas

  • Directed Energy
  • Directed Energy - Lasers