Navier-Stokes Solutions for Chemical Laser Flows: Steady and Unsteady Flows,

Abstract

Time-dependent finite-difference solutions of the two-dimensional Navier-Stokes equations, fully coupled with the appropriate finite-rate chemical kinetic equations, are obtained for HF chemical laser flows. These solutions demonstrate the practicality of Navier-Stokes solutions for chemical laser flows. Results are given for steady flows where large pressure gradients are calculated as a natural part of the Navier-Stokes solutions. In addition, the effect of unsteady fluctuations intentionally introduced at the cavity inlet are studied. Such unsteady mixing increases the laser gain by more than a factor of two. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1979
Accession Number
ADA066791

Entities

People

  • Ajay P. Kothari
  • Everett Jones
  • John D. Anderson Jr.

Organizations

  • University of Maryland

Tags

Communities of Interest

  • Energy and Power Technologies
  • Weapons Technologies

DTIC Thesaurus Topics

  • Boundaries
  • Boundary Layer
  • Chemical Reactions
  • Computational Fluid Dynamics
  • Computational Science
  • Computer Programs
  • Creep
  • Diffusion Coefficient
  • Fluid Dynamics
  • Fluid Flow
  • Mechanical Properties
  • Physics Laboratories
  • Pressure Gradients
  • Steady Flow
  • Thermal Conductivity
  • Transport Properties
  • Unsteady Flow

Fields of Study

  • Physics

Readers

  • Combustion science or combustion engineering.
  • Finite Element Method (FEM) for solving Partial Differential Equations (PDEs)
  • Fluid Mechanics and Fluid Dynamics.

Technology Areas

  • Directed Energy