Inter-Linkage of Transports and its Bridging Mechanism

Abstract

The physical mechanisms determining the diffusive and non-diffusive terms of particle, momentum and heat transports are described. The non-diffusive term in particle transport, which causes inward pinch or outward flux, is driven by the temperature gradient and the magnetic field curvature. The non-diffusive term in the momentum transport, which drives spontaneous toroidal rotation, is found to depend on the electric field and ion temperature gradient in the plasma. In heat transport, no clear non-diffusive term is observed. The temperature and temperature gradient dependences of the diffusive terms are discussed.