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arXiv · 1508.07260

Nernst Effect in Magnetized Plasmas

Archis S. Joglekar·Alexander G. R. Thomas·Christopher P. Ridgers·Robert J. Kingham
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Abstract

We present nanosecond timescale Vlasov-Fokker-Planck-Maxwell modeling of magnetized plasma transport and dynamics in a hohlraum with an applied external magnetic field, under conditions similar to recent experiments. Self-consistent modeling of the kinetic electron momentum equation allows for a complete treatment of the heat flow equation and Ohm's Law, including Nernst advection of magnetic fields. In addition to showing the prevalence of non-local behavior, we demonstrate that effects such as anomalous heat flow are induced by inverse bremsstrahlung heating. We show magnetic field amplification up to a factor of 3 from Nernst compression into the hohlraum wall. The magnetic field is also expelled towards the hohlraum axis due to Nernst advection faster than frozen-in-flux would suggest. Non-locality contributes to the heat flow towards the hohlraum axis and results in an augmented Nernst advection mechanism that is included self-consistently through kinetic modeling.

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Archis S. Joglekar, Alexander G. R. Thomas, Christopher P. Ridgers, Robert J. Kingham. 2015-08-28. Nernst Effect in Magnetized Plasmas. https://arxiv.org/abs/1508.07260

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