Study of Thermal Transport Effects on Drift-Tearing Mode

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Abstract

The linear analysis of the drift tearing mode based on four-field reduced two fluid model is performed to investigate thermal transport effects on the growth rate. It is found that thermal transport along magnetic field line destabilizes the drift-tearing mode and this effect is due to the interaction between the perturbed vector potential and the perturbed temperature. The result indicates that the equilibrium temperature gradient coupled with the vector potential in the parallel heat transport term might be an additional instability source for the drift-tearing mode in collisional limit.

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