Dufour and Soret effects in a magnetized and non-magnetized plasma

Abstract

It is well known that magnetic fields affect heat conduction in a different way in the direction parallel and perpendicular to the field. In this paper a formal derivation of this phenomenon and analytical expressions for the transport coefficients based in the Boltzmann equation are presented. Moreover, the Dufour effect or diffusion thermo effect is usually ignored in plasma transport theory. In this work, analytic expressions for the parallel and perpendicular thermal conductivities as well as the coefficients for both the thermal diffusion, or Soret, effect and the Dufour effect are formally derived. It is also shown how the heat conduction in the perpendicular direction decreases with increasing magnetic field and how in both directions the diffusion thermo effect is significant compared to thermal conduction. Other aspects of this work are also emphasized.

LaTex, 5 figures

References in corpus (5)

• Thermal Conduction in Clusters of Galaxies
• Thermal conduction and reduced cooling flows in galaxy clusters
• Thermal Conduction in Simulated Galaxy Clusters
• Viscous Shear Instability in Weakly Magnetized, Dilute Plasmas
• Plasma physics in clusters of galaxies

Cited by in corpus (4)

• Gravitational instability of a dilute fully ionized gas in the presence of the Dufour effect
• Influence of the Dufour effect on striations formation in radio-frequency discharges
• Heat conductivity and Dufour effects in the weakly ionized, magnetized and kappa-distributed plasma
• Structure formation in the presence of relativistic heat conduction: corrections to the Jeans wave number with a stable first order in the gradients formalism