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Study of the plasma-wall interaction in magnetic fusion devices requires transport equations for a plasma consisting of hydrogen and low Z impurity admixtures such as carbon and oxygen. For high impurity concentrations a strong collisional coupling exists between the various ion species, and the plasma behaviour should then be described by multifluid equations. A summary is given of the classical longitudinal diffusion, heat transfer and viscosity coefficients for a plasma mixture of hydrogen and a single impurity element in its various charge states. The results are presented within Grad's 21 moment approximation, which yields the same accuracy in the transportation coefficients as Braginski's Sonine polynomial expansion method.

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Authors: CLAASSEN H A, Institut für Plasmaphysik, Kernforschungsanlage Jülich GmbH, Jülich (DE);GERHAUSER H, Institut für Plasmaphysik, Kernforschungsanlage Jülich GmbH, Jülich (DE);EL-SHARIF R N, Atomic Energy Authority, Nuclear Research Centre, Cairo (EG)
Bibliographic Reference: Article: Proceedings of the 20th International Conference on Phenomena in Ionized Gases, Contributed Papers 2 (1991) pp. 375-376
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