Corpus ID: 235417431

Conserving Local Magnetic Helicity in Numerical Simulations

  title={Conserving Local Magnetic Helicity in Numerical Simulations},
  author={Yossef Zenati and Ethan T. Vishniac},
Magnetic helicity is robustly conserved in systems with large magnetic Reynolds numbers, including most systems of astrophysical interest. This plays a major role in suppressing the kinematic large scale dynamo and driving the large scale dynamo through the magnetic helicity flux. Numerical simulations of astrophysical systems typically lack sufficient resolution to enforce global magnetic helicity over several dynamical times. Errors in the internal distribution of magnetic helicity are… Expand

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