Session D3: Plasmas and Fusion
1:30 PM–3:18 PM, Friday, October 6, 2006
Eccles Conference Center Room: Room 201/203
Chair: Ross Spencer, Brigham Young University
Abstract ID: BAPS.2006.4CF.D3.4
Abstract: D3.00004 : Non-local plasma heat flow in a perturbed magnetic field
2:06 PM–2:18 PM
Preview Abstract
MathJax On | Off 
Abstract 
Authors:
John James
Eric Held
(Utah State University)
In this work, we review the derivation and implementation of a non-local closure\footnote{E. D. Held, J. D. Callen and C. C. Hegna, Phys. Plasmas 10, 3933 (2003).} for the field-aligned heat flow in the plasma fluid temperature equation. We apply the closure to a plasma embedded in a sheared slab magnetic field configuration with a single-helicity perturbation and compare derived quantities such as effective radial thermal diffusivity and on-axis plasma temperature with those obtained using a flux-limiting and a local diffusive form for the closure. A novel algorithm for rapid approximation of the heat-flow integrals involved in calculating the non-local closure is presented along with results from validity and convergence tests.
To cite this abstract, use the following reference: http://meetings.aps.org/link/BAPS.2006.4CF.D3.4