Impulse formulations of Hall magnetohydrodynamic equations
Impulse formulations of Hall magnetohydrodynamic (MHD) equations are developed. The Lagrange invariance of a generalized ion magnetic helicity, is established for Hall MHD. The physical implications of this Lagrange invariant are discussed. The discussion is then extended to compressible Hall MHD and a generalized ion magnetic potential helicity Lagrange invariant is established. The physical implications of the generalized ion magnetic potential helicity Lagrange invariant are shown to be the same, as to be expected, as those of the generalized ion magnetic helicity Lagrange invariant. (C) 2009 Elsevier B.V. All rights reserved.
Physics Letters A
"Impulse formulations of Hall magnetohydrodynamic equations" (2009). Faculty Bibliography 2000s. 2134.