In most fluid models the generation mechanism and the magnetide of anomaloustransport are usually treated as auxiliary terms external to the modeldescription and are free to manipulate, the anomalous transport is indeed anoticeably self-generated effect exhibited in a multi-fluid system. Comparingthe current relaxation levels with kinetic Vlasov simulation of the sameinitial setups, it's found that there is a higher anomalous transport in themulti-fluid plasma, i.e. a stronger current reduction in the multi-fluidsimulation than in the kinetic Vlasov simulation for the same setup. To isolatethe mechanism that causes the different anomalous transport levels, we henceinvestigated the detailed wave-particle interaction by using spectrum analysisof the generated waves, combined with a spatial-averaged distributions atdifferent instants. It shows that the Landau damping in kinetic simulationtakes a role that stablizes the plasma-drifting system, when the bulk veliocityof electron drifts drop beneath the phase velocity of waves. The currentrelaxation process stops while the relative drift velocity between electrons isstill high.
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