P. Helander, COMMENTS ON NEOCLASSICAL HEAT-FLUX DUE TO POLOIDAL ELECTRIC-FIELD IN ARBITRARY COLLISIONALITY REGIME, Plasma physics and controlled fusion, 37(1), 1995, pp. 57-59
In a recent paper, Taguchi claims that the spontaneously arising, polo
idal electric held increases the collisional electron heat flux substa
ntially over that found in conventional neoclassical theory. It is sho
wn that this conclusion is incorrect and is a result of the neglect of
the role played by the potential energy.