Numerical study of plasma-wall transition in a magnetic field
A detailed understanding of the interface of a magnetized plasma in contact with a wall is of great importance for further progress in plasma-wall interaction research. In particular, a systematic study of configurations with shallow angles of the magnetic field to the wall is necessary for divertor design and leads to better understanding of probes in magnetized plasmas. By means of a particle-in-cell code (PIC), (three dimensions in velocity space and one dimension in ordinary space), Chodura has described the properties of the magnetic sheath when the magnetic field direction changes from perpendicular to grazing incidence relative to the wall. The main disadvantage of PIC codes is their high level of numerical noise. This becomes even more severe if a further dimension is introduced to account for flows. Eulerian Vlasov codes display a much lower level of noise and a fully kinetic Vlasov code has been implemented, which is four-dimensional in phase space and accounts for the boundary conditions at the wall. This reports the numerical results obtained with this Vlasov code, which agree well with those obtained by Chodura.
Bibliographic Reference: Report: Jül-3378 EN (1997) 18pp
Availability: Available from Forschungszentrum Jülich GmbH, Zentralbibliothek, S2425 Jülich (DE)
Record Number: 199711053 / Last updated on: 1997-09-16
Original language: en
Available languages: en