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48th AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit
Velocity distribution functions (VDFs) in a Hall thruster are known to be non-Maxwellian. For instance, the acceleration and ionization occur simultaneously inside the channel so that the ions have a bi-Maxwellian VDF. In order to model the behavior of the plasma, two main methods have been developed: fluid and particle methods. Fluid models assume near-Maxwellian VDFs and particle methods, although nonequilibrium phenomena are captured, suffer from statistical noise. By comparison, a directdoi:10.2514/6.2012-4313 fatcat:jskuhmt46naipli422brkazkia