Particle simulation model of transport in a bounded, Coulomb collisional plasma

The transport of particles and energy in a fully ionized, collisional plasma is studied through the use of a kinetic transport model. A particle‐in‐cell (PIC) code has been coupled to a Monte Carlo, binary particle model of Coulomb collisions, to provide a fully kinetic, self‐consistent description of transport and potential formation in a single spatial dimension and two velocity components (parallel and perpendicular to the spatial coordinate). The dependence of plasma transport on Coulomb collisionality is investigated by varying the normalized collision frequency within the range 10−2≤ν*≡νc0/νbe0≤5, where νc0 is the average electron/ion collision frequency and νbe0 is the frequency at which thermal electrons bounce between the collector sheath potential drops located adjacent to the absorbing plates at each end of the system. Collisions between charged‐plasma and recycled‐neutral particles are omitted in this study. For finite values of ν*, the heat conduction flux is found to be reduced from the valu...

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