Solar Flare MDH

Abstract

A new finite element time dependent, two dimensional magnetofluid code has been written. This code offers the possibility of localized mesh refinement to capture the development of current sheets, analogous to shocks by hydrodynamics. The finite difference MHD code was improved during the past year. The code is now robust, fast and user friendly. Fast driven magnetic reconnection has been simulated in three dimensions and the reconnection time scale is consistent with one logarithmic in the plasma resistivity. A model has been found where a spontaneous discontinuous magnetic field develops from a continuous initial state, which phenomenon is believed to occur in the solar corona. Several theories of MHD and resistive MHD instabilities in the solar corona have been developed.

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Document Details

Document Type
Technical Report
Publication Date
Feb 26, 1993
Accession Number
ADA262275

Entities

People

  • E. Hameiri
  • H. R. Strauss

Organizations

  • New York University

Tags

Communities of Interest

  • Air Platforms
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Computational Fluid Dynamics
  • Computational Science
  • Convection
  • Differential Equations
  • Equations
  • Flow
  • Fluid Dynamics
  • Instability
  • Long Wavelengths
  • Magnetic Fields
  • Simulations
  • Solar Corona
  • Solar Flares
  • Solar Physics
  • Temperature Gradients
  • Three Dimensional
  • Two Dimensional

Fields of Study

  • Physics

Readers

  • Approximation Theory.
  • Plasma Physics / Magnetohydrodynamics
  • Solar Physics