Multicomponent Transport Algorithms for Partially Ionized Plasmas
نویسندگان
چکیده
We investigate iterative methods for solving transport linear systems of partially ionized plasmas. We consider the situations of weak and strong magnetic fields as well as nonequilibrium and the linear systems are investigated in their natural constrained singular symmetric form. Stationary iterative techniques are considered with a new more singular formulation of the transport linear systems as well as orthogonal error algorithms. The more singular formulation is derived from an expansion of generalized inverses into dyadic products of conjugate directions. Numerical tests are performed with high temperature air and show that iterative techniques lead to fast and accurate evaluation of multicomponent transport coefficients for all ionization levels and magnetic field intensities. We obtain in particular low cost accurate approximations of multicomponent diffusion matrices in partially ionized plasmas.
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