NASA NTRS · 19890048434
Sawtooth oscillations about helical current channels
Abstract
An existing pseudospectral code for solving the three-dimensional equations of reduced magnetohydrodynamics is extended by adding a temperature equation. Resistivities and thermal conductivities are given their (isotropic) Braginskii temperature dependences, and are advanced self-consistently. Realistic-looking sawtooth oscillations are observed at modest Lundquist and Reynolds numbers. However, the oscillations are excited upon, and relax back to, a helical (rather than an axisymmetric) current channel.
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Theobald, M. L., Montgomery, David, Doolen, G. D., Dahlburg, J. P.. 1989-04-01. Sawtooth oscillations about helical current channels. https://ntrs.nasa.gov/citations/19890048434
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