An intuitive form of the energy functional for resistive plasma perturbations

The energy functional of ideal magnetohydrodynamics (MHD) is extended to the regime finite resistivity and transformed into an intuitive form, which separates pressure-gradient, current-density drive stabilising phenomena, analogously version derived by Greene Johnson ( Plasma Phys. , vol. 10, issue 8, 1968, pp. 729–745). resulting resistive not in form a solvable eigenvalue problem but intended analyse energetic composition eigenfunctions were calculated advance solving MHD equations. new provides information on different drives phenomena eigenfunction. has been implemented CASTOR3D code general 3D curvilinear coordinates successfully validated across three coordinate systems for numerical test case.