2016
DOI: 10.1016/j.physleta.2016.08.011
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Exact solutions of the Grad–Shafranov equation via similarity reduction and applications to magnetically confined plasmas

Abstract: We derive exact solutions of a linear form of the GradShafranov (GS) equation, including incompressible equilibrium flow, using ansatz-based similarity reduction methods. The linearity of the equilibrium equation allows linear combinations of solutions in order to obtain axisymmetric MHD equilibria with closed and nested magnetic surfaces which are favorable for the effective confinement of laboratory plasmas. In addition, employing the same reduction methods we obtain analytical solutions for several non-line… Show more

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Cited by 6 publications
(3 citation statements)
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“…a set of two special solutions to the inhomogeneous equations ( 48) and (49) can be found by a direct similarity reduction method [31] which is portrayed in the appendix. These solutions are…”
Section: Equilibrium Solutions In Terms Of Whittaker Functionsmentioning
confidence: 99%
See 1 more Smart Citation
“…a set of two special solutions to the inhomogeneous equations ( 48) and (49) can be found by a direct similarity reduction method [31] which is portrayed in the appendix. These solutions are…”
Section: Equilibrium Solutions In Terms Of Whittaker Functionsmentioning
confidence: 99%
“…Here, h 1 (R) and h 2 (R) are given in terms of Whittaker functions, and therefore one should resort in the use of numerical methods for the computation of the above integrals. For this reason, in this study, we employ a direct similarity reduction method [31] 48) and (49) and selecting c 2 = 0, we obtain the solutions (55) and (56) with the constraints (54).…”
Section: Appendix Inhomogeneous Solutions Via Direct Similarity Reduc...mentioning
confidence: 99%
“…The existence of magnetic surfaces under these perturbations and their effect on the dynamics of charged particles could prove important. The interest of symmetry theory in Plasma Physics is in any case increasingly growing, most often for the Magnetohydrodynamic equations or the Grad-Shafranov equation [14,22,36,105,120,23,64].…”
Section: Introductionmentioning
confidence: 99%