Generalized two-fluid equilibria: Understanding RT-1 experiments and beyond

Yoshida, Z.; Mahajan, S. M.; Mizushima, T.; Yano, Y.; Saitoh, H.; Morikawa, J.
November 2010
Physics of Plasmas;Nov2010, Vol. 17 Issue 11, p112507
Academic Journal
Diversity of plasma structures, which degenerates in the ideal magnetohydrodynamic model, can emerge in many ways in a two-fluid plasma endowed with a hierarchy of scales. We study the equilibrium structure of high-beta (high temperature and low-density) electrons in a relatively weak magnetic field. Spontaneous flow generation and strong diamagnetism are clear manifestations of the nonideal two-fluid dynamics scaled, respectively, by the ion and electron-inertia lengths (skin depths). The theory predicts stronger flow and diamagnetism in the nonlinear regime of the two-fluid dynamics.


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