Physics-Based Analysis Using the Empirical High Accuracy Satellite Dray Model (HASD)

Abstract

In this study, we have employed a 2.5D time-dependent streamer-flux rope MHD model to investigate the role of magnetic reconnection in the CME acceleration processes. To implement this simulation, two distinct types of initial magnetic topology (i.e., Inverse and Normal prominence configuration) are used. The results showed: The normal prominence magnetic configuration forms a current sheet in the region of leading edge of the flux-rope, thus the magnetic reconnection occurs to open the closed field of the streamer which allows the flux rope to escape to launch a fast CME as suggested by Low and Zhang (2002). On the other hand, when the initial magnetic topology in the initial prominence configuration, the magnetic reconnection occurs at trailing edge of the flux-rope. In this case, the streamer confined the flux-rope until the magnetic reconnection occurs, this confined force removed which enlaced the CME acceleration (Wu et al. 2004) Both inverse and normal prominence configurations are able to produce fast CMEs.

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Document Details

Document Type
Technical Report
Publication Date
Sep 18, 2002
Accession Number
ADA465798

Entities

People

  • Arjun Tan
  • S. T. Wu
  • T. W. Zhang
  • Xueshang Feng

Organizations

  • Alabama A & M College

Tags

Communities of Interest

  • Space

DTIC Thesaurus Topics

  • Abstracts
  • Accuracy
  • Artificial Satellites
  • Contracts
  • Department Of Defense
  • Environment
  • Leading Edges
  • Lepidoptera
  • Scientific Research
  • Space Environments
  • Topology
  • Trailing Edges
  • Universities

Fields of Study

  • Physics

Readers

  • Computational Fluid Dynamics (CFD)
  • Fluid Dynamics.
  • Solar Physics

Technology Areas

  • Space