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Theoretical Features of the Radial Collisional Transport in Magnetoplasmas
Author(s) -
Tessarotto M.
Publication year - 1982
Publication title -
zamm ‐ journal of applied mathematics and mechanics / zeitschrift für angewandte mathematik und mechanik
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.449
H-Index - 51
eISSN - 1521-4001
pISSN - 0044-2267
DOI - 10.1002/zamm.19820621004
Subject(s) - gyroradius , physics , statistical physics , fokker–planck equation , isobaric process , radius , plasma , interpretation (philosophy) , thermodynamic equilibrium , classical mechanics , quantum mechanics , thermodynamics , partial differential equation , computer security , computer science , programming language
A formulation of the problem of collisional transport in magnetoplasmas in non‐symmetric configurations is illustrated. General properties of the transport across a family of isobaric surfaces are discussed and it is found that only for symmetric configurations (e.g. with one ignorable coordinate) ambipolarity for the particle fluxes is automatically fulfilled, up to second order in the Larmor radius, for a quasi‐neutral plasma. Furthermore integral expressions for the fluxes are obtained in the case of a state of near thermodynamic equilibrium and a partial iterative method in terms of the drift Fokker ‐ Planck equation is discussed. Finally the limits of validity of the present model are investigated and a stochastic interpretation of the results in terms of the random‐walk model is pointed out.