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Showing 1 to 9 of 9 for “"Hall effect thrusters"”.
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Fully-kinetic PIC simulations for Hall-effect thrusters
… numerically modeled the near-anode region of a Hall thruster in attempts to better understand the associated physics of thruster operation. Originally, simulations assumed a continuum approximation for electrons and used magnetohydrodynamic fluid equations to model the significant processes. …
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Parallelization of particle-in-cell simulation modeling Hall-effect thrusters
MIT's fully kinetic particle-in-cell Hall thruster simulation is adapted for use on parallel clusters of computers. Significant computational savings are thus realized with a predicted linear speed up efficiency for certain large-scale simulations. The MIT PIC code is further enhanced and updated …
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Hollow cathode life time modelling
… being used as electron sources in ion and Hall-effect thrusters. Hence, their lifetime is a key factor in all these applications.<br/><br/>HCs have demonstrated the capability of providing up to 30,000 hours of operation, whereas no direct experimental data exist above this …
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Active Thermal Augmentation and Ultra Dense MEMS-Based Electrospray Thrusters
Ionic liquid electrospray thrusters, a highly efficient form of electric space propulsion, have several advantages over traditional chemical forms of space propulsion as well as competing forms of electric propulsion, including their unique scalability down to extremely small sizes, their use of …
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Comparative simulations of conceptual ion extractors for use in asymmetric inertial electrostatic confinement
… plasma based propulsion systems are used. While Hall Effect thrusters are the general standard for plasma propulsion, new technologies can enable shorter travel times. The Helicon Injected Inertial Plasma Electrostatic Rocket (HIIPER) is an attempt to create a new type of robust plasma propulsion …
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Development and simulation of a cylindrical cusped-field thruster and a diagnostics tool for plasma-materials interactions
A low power, Hall-effect type plasma thruster known as the MIT-Cylindrical Cusped- Field Thruster (MIT-CCFT) has been developed and simulated using a fully-kinetic plasma model, the Plasma Thruster particle-in-cell (PTpic) model. Similar to the Diverging Cusped-Field Thruster (DCFT) previously …
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A plasma-wall interaction model for the erosion of materials under ion bombardment
… are several models that try to predict this effect by accounting for material sputtering. However, they cannot predict the millimeter-scale surface features that develop after prolonged exposure. In this work, we address this issue by introducing a plasma-material interaction model able to …
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The Effect of the 2-Dimensional Magnetic Field Profile in Hall Thrusters
<p>Electric propulsion engines, in particular Hall thrusters, provide the possibility of long-distance, low-cost space travel. The geometrical details of the Hall thrusters, especially the magnetic field prole, are crucial to improving their efficiency. The effect of the magnetic field structure …
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Investigation of Magnetic Field Profile Effects in Hall Thrusters
… profiles to the acceleration region length of a Hall thruster. The general transport equations were simplified and solved using a one-dimensional analysis. Some of the model assumptions include quasineutrality, Maxwellian electrons, and negligible thruster wall effects. The solved equation kept …