There are still many missing elements to complete the full understanding of physical mechanisms at the basis of the Hall thruster functioning. The origin of the anomalous electron cross-field transport remains unrevealed, while electron-wall interaction is often studied by local and/or reduced dimensional models. In this study, we attempt a fully kinetic self-consistent 3D particle-based simulation of the Hall-effect discharge. Results show the presence of multi-dimensional sheath structures in the acceleration region characterized by azimuthal modulation and axial transition from classical to reversed sheath.
Physics of Hall-Effect Discharge by Particle
F Taccogna;P Minelli;
2013
Abstract
There are still many missing elements to complete the full understanding of physical mechanisms at the basis of the Hall thruster functioning. The origin of the anomalous electron cross-field transport remains unrevealed, while electron-wall interaction is often studied by local and/or reduced dimensional models. In this study, we attempt a fully kinetic self-consistent 3D particle-based simulation of the Hall-effect discharge. Results show the presence of multi-dimensional sheath structures in the acceleration region characterized by azimuthal modulation and axial transition from classical to reversed sheath.File in questo prodotto:
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