Algorithm Development for the Two-Fluid Plasma Model

Abstract

A new algorithm is developed based on the complete two-fluid plasma model. The model captures physics that is not contained in the more common magnetohydrodynamic model. Recent progress on the algorithm development for the two-fluid plasma model includes analysis of the simulation results, extension to two dimensions, and preliminary investigation of a higher order method. The algorithm is first developed in one dimension and applied to the electromagnetic plasma shock. Results are analyzed to provide physical support for the numerically observed fast waves. The two-fluid plasma algorithm is extended to multidimensions including a complete electromagnetic field description. The divergence constraints on the fields are satisfied by transforming the constraints into hyperbolic equations. A preliminary higher-order discontinuous Galerkin, Runge-Kutta method is investigated to more accurately balance equilibrium sources.

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Document Details

Document Type
Technical Report
Publication Date
Jul 20, 2005
Accession Number
ADA437393

Entities

People

  • Uri Shumlak

Organizations

  • University of Washington

Tags

Communities of Interest

  • Advanced Electronics
  • Air Platforms
  • Energy and Power Technologies
  • Materials and Manufacturing Processes
  • Weapons Technologies

DTIC Thesaurus Topics

  • Air Force
  • Air Force Research Laboratories
  • Boltzmann Equation
  • Boundaries
  • Current Density
  • Dispersion Relations
  • Electromagnetic Fields
  • Equations
  • Fluids
  • Galerkin Method
  • Hall Effect
  • Lorentz Force
  • Magnetic Fields
  • Radiation
  • Simulations
  • Two Dimensional
  • Wave Propagation

Readers

  • Computational Fluid Dynamics (CFD)
  • Finite Element Method (FEM) for solving Partial Differential Equations (PDEs)
  • Pulsed Power and Plasma Physics.