Analytical and numerical solutions of force-free equilibria with flow

R. Paccagnella, L. Guazzotto

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Abstract

The model of plasma equilibrium in the presence of toroidal and poloidal flows is studied for a force-free plasma. With these simplifying assumptions the set of Grad-Shafranov-Bernoulli equations decouples. Analytical solutions are found in some limits. These solutions are compared with numerical simulations using the FLOW code. It is shown that in the presence of a general unconstrained flow, with poloidal and/or toroidal components, the force-free solutions are not consistent with a confined plasma state with monotonically decreasing pressure. © 2011 IOP Publishing Ltd.
Original languageEnglish
Article number095013
Pages (from-to)-
JournalPlasma Physics and Controlled Fusion
Volume53
Issue number9
DOIs
Publication statusPublished - Sep 2011
Externally publishedYes

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All Science Journal Classification (ASJC) codes

  • Nuclear Energy and Engineering
  • Condensed Matter Physics

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