A Three-Function Variational Principle for Stationary Nonbarotropic Magnetohydrodynamics

The current paper is devoted to the introduction of simpler Eulerian variational principles from which all relevant equations nonbarotropic stationary magnetohydrodynamics can be derived for magnetic fields that lie on surfaces. A principle given in terms three independent variables magnetohydrodynamic flows. This a smaller number than eight appear standard magnetohydrodynamics, are field, velocity specific entropy, and density. We further investigate case flow along lines not ideal.